HomeMy WebLinkAboutbocc.con.208.2016 CONTRACT#
RESOLUTION OF THE BOARD OF COUNTY COMMISSIONERS
OF PITKIN COUNTY, COLORADO AUTHORIZING THE CONTRACT WITH
DIGGIN IT RIVER WORKS INC. FOR THE RECREATIONAL IN-CHANNEL
DIVERSION PROJECT AND THE EXPENDITURE OF FUNDS
RESOLUTION NO. -2016
1. The Voters of Pitkin County and the Board of County Commissioners established
the Healthy Rivers and Streams fund, a dedicated sales tax for healthy rivers and streams.
2. An objective of the Healthy Rivers and Streams program is to maintain and
improve water quality and quantity within the Roaring Fork Watershed.
3. Pursuant to the decree issued in Case No. 2010CW305 on June 12, 2014, Pitkin
County obtained a water right through an application for Surface Water Right
Appropriations for Recreational In-Channel Diversion. This allows for Pitkin County to
call water to the in-channel features and maintain healthy stream flows in the Roaring
Fork River.
4. Pursuant to the Pitkin County Procurement Code, a Request for Proposals was
issued and Diggin It River Works Inc.was awarded the contract to construct two (2)
recreational in-channel diversion recreation features at the project location which is south
of Two Rivers Road approximately 0.35 miles west of the Two Rivers Road/CO-82
intersection, east of Basalt. (39° 21'47"N, 107° 1'46.3" W)
NOW,THEREFORE,BE IT RESOLVED by the Board of County Commissioners of
Pitkin County, Colorado that:
1. The Board approves an expenditure of healthy rivers funds up to an amount of
$770,000 for the construction and management of the Recreational In-Channel Diversion
Project.
2. Upon approval of the form by the County Attorney,the Chair or her designee is
authorized to execute the contract between the Pitkin County Board of County
Commissioners and Diggin It River Works Inc., and other documents needed to effectuate
this transaction.
INT ODUCE , READ AND ADOPTED ON THE /D DAY OF
51 2016.
ATTEST: BOARD OF COUNTY COMMISSIONERS
1
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B A/.14 J./. , ala- By: "`'f - (----
J-1 ette
amJ-:tette Jones / Rachel E. Richards, Chair
it putt'County Cler
Date: /0//q /9.6
1 fe,
APPROVED AS TO FORM: MANAGER APPROVAL
Joh• y, Co • i 'ttorney Jon Peacock, County Manager
2
7/2015 kiln
�iTxIN Pitkin County
CouNT' Contract Cover Sheet
Please complete the Contract Cover Sheet when the contract is completed and signed by Contractor and Pitkin County
Project Manager.
Return all Contract Cover Sheets and Contracts/Change Orders/Amendments to Procurement
(procurement_help@,pitkincounty.com).Any contracts$50,000 and over will be routed for signatures to County Manager
and Attorney's Office(if required)by Procurement&Contracts Manager.
Contract Information
Contract Number 208.2016
Project Name Recreational In-Channel Diversion Project
Contractor Diggin It River Works,Inc.
Budget Line Item 123.83.95003.86160
Additional Budget Line Item(s) SPECIAL NOTE TO A/P:Payments for this Contract need to be
and special notes to Finance sent to an Escrow Account."Diggin It River Works,Inc.,Escrow
Account#5111916432"and sent to address:North American
Construction Services, Inc. 1710 Douglas Drive N. Suite 109
Golden Valley,MN 55422.Additional payment instructions are
included as back-up.
Contract Start Date 8/10/2016
Contract End Date 4/30/2017
Automatic Renewal Yes ❑ No
If Construction: Retainage Yes, 5%
If this is a new contractor,please request they complete and submit to Finance a W-9 Form.
Contact Information:
Department Healthy Rivers and Streams
Project Manager McDonald Project Manager 5191
Phone
Provide a brief description of the contract:
Contractor shall construct 2 recreational in-channel diversion recreation features, install bank
stabilization, install 5 geomorphic structures and maintain care of water throughout construction of
water park.
Contract Value Summary:
Contract Amount $698,851.00
This Change order/Amendment amount(if applicable) $
New Contract Total $
Procurement Method:
None ❑ Informal❑ Formal I4 Sole Source 0 Emergency 0 Contract Renewal 0
7/2015 kjm
Contract Type:
Services/Maintenance ❑ Construction ►1 Goods,Equipment, Supplies El
Change Order/Amendment ❑ Other,please explain 0 Click here to enter text.
NOTE: CLERKS OFFICE WILL KEEP ORIGINAL DOCUMENTS IN COMPLIANCE WITH COLORADO STATE
ARCHIVES RETAINAGE SCHEDULE.ALL ATTACHMENTS MUST BE WITH THIS CHECKLIST.
7/2015 kjm
Contract Type:
Services/Maintenance ❑ Construction CI Goods,Equipment, Supplies ❑
Change Order/Amendment 0 Other,please explain 0 Click here to enter text.
NOTE: CLERKS OFFICE WILL KEEP ORIGINAL DOCUMENTS IN COMPLIANCE WITH COLORADO STATE
ARCHIVES RETAINAGE SCHEDULE. ALL ATTACHMENTS MUST BE WITH THIS CHECKLIST.
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These instructions, which are coupled with an interest, may not be modified, changed or _
rescinded without the written authorization and consent of an officer or Attorney-In-Fact of the
Surety.
Sincerely, ACCEPTED AND AGREED BY OBLIGEE:
Diggin It River Works,Inc. Board of County Commissioners of Pitkin
County, CO
'an Barackman,President Name: J c c LrI-
Title:Ct ;r P1 t( &)C c
Date: () IC /moo[
Telephone: '9 • 1. 41-\ — XJ
E-Mail Address:
HIGH IMPORTANCE (FOR OBLIGEE USE ONLY)
The expected date of first payment on the above referenced project is
JAI 2-Z Lott .
***NAGS understands that an actual date may not be realistic, but
please include a date range if possible (2 weeks, 15-30 days, etc.).
•
Verified Date Time By/Initials
(This line for use by NACS only)
21Page
Contract#208.2016 Rev.06/02/2015 kjm
Budget Line Item#
41) KIN
COUNT
PITKIN COUNTY CONSTRUCTION CONTRACT
RECREATIONAL IN-CHANNEL DIVERSION PROJECT
THIS CONTRACT,made this 22nd day of July 2016,by and between the Board of County
Commissioners of Pitkin County,Colorado,(hereinafter called the"County")and Diggin' It River
Works, Inc. 1204 Avenida del Sol#224, Durango, CO 81301 (hereinafter called the"Contractor")
to perform the following work: Recreational In-Channel Diversion Project("Project").
Term of Contract. The term of this contract is from July 22, 2016 to April 30, 2017.
II. Scope of Work and Work Schedule.
A. Contractor shall construct two (2)recreational in-channel diversion recreation
features, install bank stabilization, install 5 geomorphic structures and maintain
care of water throughout construction. The location of the project is south of Tow
River Road approximately 0.35 miles west of the Two Rivers Road/CO-82
intersection, east of Basalt. (39° 21'47"N, 107° 1'46.3" W)
B. The Technical Specifications for the Project are detailed in Exhibit A: Technical
Specifications, Exhibit B: Bypass Modeling, Exhibit C: Emergency Access
Plan and Profile,Exhibit D: Temporary Care of Water Plan.
The Contractor's detailed approach to project includes but is not limited to:
a. Obtain the licenses, permits, and signage, provide traffic control plan, an
approved dewatering plan, and utility locates
b. Contractor shall file the extension with CPW
c. Install yard fencing
d. Mobilize equipment for the Work at the Staging Area on Emma Road
e. Implement Traffic control, construction area signage
f. Provide and work to a Care of Water Practices
g. Harvest all stakes and poles and store in an area approved by County
representative
h. Installation of bypass channel culverts, coffer dams and haul road
i. Dewater construction area
j. Remove and stock pile existing bank stabilization rocks, fill staging area, haul
off approximately 90% of haul off material. At this time we will Grade the
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upstream reach and install grade controls reusing the old bank boulders. At that
time Contractor will acquire the extension at this time.
k. Survey the diversions and precast locations, install precasts, haul in and install
boulders.
1. Boulder installation will start on downstream feature first completing center
section. Second, river right wing, downstream reach and Emergency access
, Pathway.
m. Continuing the in-channel boulder work Contractor will start at the wave blocks
first building the center section of upstream feature, second the river right wing
and connecting the bank work to the downstream feature, third the river left
wing and forth the upstream river right and river left sections of the wing and
forth the upstream river right bank work. At this point Contractor will resurvey,
make adjustments if needed, open the coffer dams and test the feature. If
needed, Contractor will re-dam and make adjustments in the dry or make
adjustments in the wet.
n. When the water features are perfected Contractor will remove the coffer dams,
install riffle, install habitat boulders, remove the bypass piping, install the
geomorphic structures, grade controls, fill the bypass channel and connect to
upstream river left reach. Remove the holding ponds using boulders on grade
controls. Contractor will demobilize from access road,topsoil and replace logs.
Then Contractor will mobilize to Fisherman's Park to excavate and haul off
materials,import and place boulders,and plant birch trees and install road base.
o. Planting of willows and cottonwoods will proceed at the end of the project or
as soon as it is best.
C. All work performed under this Contract shall be done according to the following
work schedule:
a. August 15- September 30: Mobilize, implement dams and upstream reach and
bypass piping and settling ponds. Perform dewater process, do 90%haul off
and install boulder in the upstream reach.
b. October 1- October 30: Await for CPW Extension
c. November 1-30: Install safety path, wave blocks, build diversion structures
and all boulder work within the dam.
d. December 1-31: Remove dams,test features, install grade controls, riffle and
geomorphic structures, remove holding ponds.
e. January 1-30: Complete the in-channel work, move to Fisherman's Park to
complete boar ramp and create a better eddie/pull out.
f. February 1-April 15: Mobilize back to staging area and restore the access area
and demobilize equipment. Complete the planting when conditions permit.
D. Pricing Details
a. Contractor shall provide an invoice for mobilization upon Contracting signing.
The mobilization cost is $50,000.00.
b. Detailed pricing is in Exhibit E: Detailed Pricing.
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III. Payment. The County agrees to pay, and the Contractor agrees to accept, in full payment
for the performance of this Contract, the total price of six hundred ninety eight thousand, eight
hundred fifty one dollars ($698,851.00) in accordance with this Contract, subject to increase or
decrease in accordance with the provisions of this Contract; but any payment by the County may
be offset by any amount the Contractor owes the County for any reason.
A. Payment Procedures.
1. Contractor shall submit applications for payment every two (2) weeks for
work done to date.
2. Progress payments for Contracts exceeding one hundred fifty thousand
dollars ($150,000).
a. County shall make progress payments, within thirty (30) days of
County's approval of Contractor's pay request.
b. In accordance to amended Section 2 24-91-103, C.R.S. For
contracts exceeding one hundred fifty thousand dollars ($150,000) and if the
Contractor is satisfactorily performing this contract, progress payments shall be in
an amount equal to ninety percent (95%) of the calculated value of completed
Project work. If,in the opinion of the Procurement Officer and County,satisfactory
progress is not being made on the Project, or if claims are filed under Section 38-
26-107,Colorado Revised Statutes,as amended,County may retain such additional
amounts as County may deem necessary to assure completion of the Project or to
pay such claims and any Procurement Officer's and attorney's fees reasonably
incurred or to be incurred by County in defending or handling such claims. The
withheld percentage of the Contract Price shall be retained until the Project is
completed satisfactorily and finally accepted by County in accordance with the
provisions of this Contract. Progress payments shall not constitute final acceptance
of the Project.
B. County shall make final payment, including release of retainage, to Contractor in
accordance with this Contract and Section 38-26-107, C.R.S. and Section 24-91-103, C.R.S., as
amended.
IV. Contractor's Obligations.
A. Supervision and Superintendence.
1. The Contractor shall supervise and direct the Project competently and
efficiently devoting such attention thereto and applying such skills and expertise as may be
necessary to perform the Project in accordance with this Contract. The Contractor shall be
solely responsible for the means, methods, techniques, sequences and procedures of
construction. The Contractor shall be responsible to see that the finished Project complies
accurately with this Contract.
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2. The Contractor shall appoint and identify to the County and Procurement
Officer, a competent on-site superintendent to be kept on the Project at all times during its
progress and who shall not be replaced without written notice to the County and the
Procurement Officer except under extraordinary circumstances. The superintendent will
be the Contractor's representative at the site and shall have authority to act on behalf of the
Contractor. All communications given to the superintendent shall be as binding as if given
to the Contractor.
B. Subcontractors, Suppliers and Others.
1. The Contractor shall not employ any subcontractor,supplier or other person
or organization (including those acceptable to the County and the Procurement Officer,
whether initially or as a substitute) against whom the County or the Procurement Officer
may have reasonable objection.
2. The identity of subcontractors, suppliers or other persons or organizations
including those who are to furnish the principal items of materials and equipment must be
submitted to the County in advance of any work performed or materials supplied under this
Contract for acceptance by the County and the Procurement Officer.No acceptance by the
County or the Procurement Officer of any such subcontractor, supplier or other person or
organization shall constitute a waiver of any right of the County or the Procurement Officer
to reject defective Project work.
3. The Contractor shall be fully responsible to the County and the Procurement
Officer for all acts and omissions of the subcontractors, suppliers and other persons and
organizations performing or furnishing any of the Project work under a direct or indirect
Contract with Contractor just as Contractor is responsible for Contractor's own acts and
omissions. Nothing in this Contract shall create any Contractual relationship between the
County or the Procurement Officer and any such subcontractor, supplier or other person or
organization,nor shall it create any obligation on the part of the County or the Procurement
Officer to pay or to see to the payment of any moneys due any such subcontractor, supplier
or other person or organization except as may otherwise be required by laws and
regulations.
4. All Project work performed for Contractor by a subcontractor will be
pursuant to an appropriate Contract between the Contractor and the subcontractor which
specifically binds the subcontractor to the applicable terms and conditions of this Contract
for the benefit of the County and the Procurement Officer.
C. Patent Fees and Royalties. The Contractor shall pay all license fees and royalties
and assume all costs incident to their use in the performance of the Project or the incorporation in
the Project of any invention,design,process,product or device which is the subject of patent rights
or copyrights held by others. Contractor shall indemnify and hold harmless the County and the
Procurement Officer and anyone directly or indirectly employed by either of them from and against
all claims, damages, losses and expenses (including attorney's fees and court costs) arising out of
any infringement of patent rights or copyrights incidental to the use in the performance of the
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Project or resulting from the product or device not specified in this Contract, and shall defend all
such claims in connection with any alleged infringement of such rights.
D. Permits. Unless otherwise provided in this Contract, the Contractor shall obtain
and pay for all construction permits and licenses. The County shall assist the Contractor, when
necessary, in obtaining such permits and licenses. The Contractor shall pay all governmental
charges and inspection fees necessary for the prosecution of the Project. The Contractor shall pay
all charges of utilities for connections to the Project, and the County shall pay all charges of such
utility owners for capital costs related thereto such as plant investment fees.
E. Laws and Regulations. The Contractor shall be familiar with and shall comply with
all federal, state, and local laws, ordinances, rules, and regulations applicable to furnishing and
performance of the Project including rules,regulations, and ordinances the County promulgates at
any time. Except where otherwise expressly required by applicable laws and regulations, neither
the County nor the Procurement Officer shall be responsible for monitoring the Contractor's
compliance with any Laws or Regulations.
F. Taxes. The Contractor shall pay all existing and future applicable federal, state and
local sales, consumer, use and other similar taxes whether direct or indirect. Federal excise tax may
not apply to materials purchased by the County. The Contract price shall include all other federal,
state, and/or local direct or indirect taxes, which do apply. The Contract price shall include the cost
of compliance with all other Federal Laws and Regulations at no additional cost to the County
(except as provided in this Contract). The Contractor shall not be reimbursed separately for any
taxes,which may apply except as provided in this Contract, and the Contractor shall be responsible
for all taxes, which may apply. The County is tax exempt from Federal Excise Tax and Colorado
State or local sales or use taxes. The Contractor and its subcontractors shall apply to the Colorado
Department of Revenue for a Certificate of Exemption indicating that the Contractor or
subcontractor's purchase of construction material or building materials is for use in a building,
structure, or other public work owned and used by the County.
G. Use of Premises.
1. The Contractor shall confine construction equipment, the storage of
materials and equipment and the operations of workers to the Project site and land and
areas permitted by this Contract,law,ordinances,and permits.The Contractor shall assume
full responsibility for any damage to any such land or area, or to the County or occupant
thereof or of any land or areas contiguous thereto, resulting from the performance of the
Project. Should any claim be made against the County or the Procurement Officer by any
such owner or occupant because of the performance of the Project, Contractor shall
promptly settle with such other party. The Contractor shall, to the fullest extent permitted
by Laws and Regulations, indemnify and hold the County harmless from and against all
claims, damages, losses and expenses (including, but not limited to, fees of engineers,
architects, attorneys and other professionals and court costs) arising directly, indirectly or
consequentially out of any action, legal or equitable, brought by any such other party
against the County or the Procurement Officer to the extent based on a claim arising out of
the Contractor's performance of the Project.
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2. During the progress of the Project, the Contractor shall keep the premises
free from accumulations of waste materials, rubbish and other debris resulting from the
Project. At the completion of the Project, the Contractor shall remove all waste materials,
rubbish and debris from and about the premises as well as all tools,appliances,construction
equipment and machinery, temporary structures, stumps or portions of trees, and surplus
materials, and shall leave the site clean and ready for occupancy by the County. The
Contractor shall restore to original condition all property not designated for alteration by
this Contract.
3. The Contractor shall not load or permit any part of any structure to be loaded
in any manner that will endanger the structure, nor shall the Contractor subject any part of
the Project or adjacent property to stresses or pressures that will endanger it.
H. Safety and Protection.
1. The Contractor shall be solely responsible for initiating, maintaining and
supervising all safety precautions and programs in connection with the Project. The
Contractor shall take all necessary precautions for the safety of, and shall provide the
necessary protection to prevent damage, injury or loss to:
a. All employees in the Project area and other persons and
organizations who may be affected thereby;
b. All the Project materials and equipment to be incorporated therein,
whether in storage on or off the site; and
c. Other property at the site or adjacent thereto,including trees,shrubs,
lawns,walks,pavements,road-ways,structures, utilities and underground facilities
not designated for removal,relocation or replacement in the course of construction.
The Contractor shall be required to assume sole and complete responsibility for job
site conditions during the course of construction of the Project, including the safety of all
persons who may enter on the job site for any reason and the security of all property located
on the job site. This requirement shall apply at all times during the courses of the Contract
and not only to normal Project work hours.
2. The Contractor shall at all times conduct the Project in such manner as will
incur the least practicable interference with traffic and existing utility systems. No section
of any road shall be closed to the public, nor any utility system put out of service except
after permission, has been granted by the Procurement Officer. Each item of the Project
shall be prosecuted to completion without delay and in no instance will the Contractor be
permitted to transfer its forces from an uncompleted Project to a new Project without prior
written notification of the Contractor to the Procurement Officer.
Unless this Contract specifically provides for the closing to traffic of any local road
or highway while construction is in progress, such road or highway shall be kept open to
all traffic by the Contractor. The Contractor shall also provide and maintain in a safe
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condition temporary approaches,crossings, or intersections with roads and highways. The
Contractor shall bear all expense of maintaining traffic over the section of road affected by
the Project to be done under this Contract, and of constructing and maintaining such
approaches, crossing, intersections and any necessary features without direct
compensation, except as otherwise provided.
The Contractor shall provide, erect and maintain all necessary barricades, signs,
danger signals and lights to protect the Project and the safety of the public. The
Contractor's responsibility for necessary barricades, signs, and lights shall not cease until
the Project has been accepted.
I. Shop Drawings and Samples.
1. After checking and verifying all field measurements and after complying
with applicable procedures specified in this Contract, the Contractor shall submit to the
Procurement Officer for review and approval in accordance with the approved schedule of
shop drawing submissions, three (3) copies (unless otherwise specified) of all shop
drawings, which will bear a stamp or specific written indication that the Contractor has
satisfied the Contractor's responsibilities under this Contract with respect to the review of
the submission. All submissions will be identified as the Procurement Officer may require.
The data shown on the shop drawings will be complete with respect to quantities,
dimensions, specified performance and design criteria,materials and similar data to enable
the Procurement Officer to review the information as required.
2. The Contractor shall also submit to the Procurement Officer for review and
approval with such promptness as to cause no delay in Project,all samples required by this
Contract. All samples will have been checked by and accompanied by a specific written
indication that the Contractor has satisfied the Contractor's responsibilities under this
Contract with respect to the review of the submission and will be identified clearly as to
material, supplier, pertinent data such as catalog numbers and the use for which intended.
3. Before submission of each shop drawing or sample, the Contractor shall
have determined and verified all quantities, dimensions, specified performance criteria,
installation requirements,materials, catalog numbers and similar data with respect thereto;
and reviewed or coordinated each shop drawing or sample with other shop drawings and
samples and with the requirements of the Project and this Contract.
4. At the time of each submission, the Contractor shall give the Procurement
Officer specific written notice of each variation that the shop drawings or samples may
have from the requirements of this Contract,and,in addition,shall cause a specific notation
to be made on each shop drawing submitted to the Procurement Officer for review and
approval of each such variation.
5. Where a shop drawing or sample is required by the specifications,no related
Project work shall be commenced prior to the Procurement Officer's review and approval
of the shop drawing or samples.
6. The cost of furnishing all shop drawings and samples shall be borne by
Contractor.
V. Performance and Payment Bond.
A. Contractor shall furnish a performance and payment bond in the amount of one half
of the total Contract value for all Contracts over $50,000, as required by C.R.S. § 38-26-105, et
seq. All Bonds shall be in the form acceptable to the County. All Bonds signed by an agent must
be accompanied by a certified copy of the authority to act.
B. If the surety on any Bond furnished by Contractor is declared bankrupt or becomes
insolvent or its right to do business is terminated in any state or it ceases to meet the requirements
of paragraph A of this Section, Contractor shall within five (5) days thereafter substitute another
Bond and Surety, both of which must be acceptable to the County.
VI. Indemnity.
A. The Contractor agrees to indemnify, hold harmless and, not excluding the County's
right to participate, defend the County, its subsidiary, parent, associated and/or affiliated entities,
successors, or assigns, its elected officials, trustees, employees, agents, volunteers, and any
jurisdiction or agency issuing permits for any work included in the project, hereinafter referred to as
indemnitee, from all suits and claims, including attorney's fees and cost of litigation, actions, loss,
damage, expense, cost or claims of any character or any nature arising out of the work done in
fulfillment of the terms of this Contract or on account of any act,claim or amount arising or recovered
under workers' compensation law or arising out of the failure of the Contractor to conform to any
statutes, ordinances, regulation, law or court decree. It is agreed that the Contractor will be
responsible for primary loss investigation, defense and judgment costs where this contract of
indemnity applies. In consideration of the award of this contract, the Contractor agrees to waive all
rights of subrogation against the County its subsidiary, parent, associated and/or affiliated entities,
successors, or assigns, its elected officials, trustees, employees, agents, and volunteers for losses
arising from the work performed by the Contractor for the County.
B. The Contractor further shall investigate, process, respond to, adjust, provide defense
for and defend, pay or settle all claims, demands, or lawsuits related hereto at its sole expense and
shall bear all other costs and expenses related thereto, even if the claim, demand or lawsuit is
groundless, false or fraudulent.
VII. Insurance. Contractor and subcontractors shall procure and maintain until all of their
obligations have been discharged, including any warranty periods under this Contract are
satisfied, insurance against claims for injury to persons or damage to property which may arise
from or in connection with the performance of the work hereunder by the Contractor, its agents,
representatives, employees or subcontractors.
The insurance requirements herein are minimum requirements for this Contract and in no way
limit the indemnity covenants contained in this Contract. The policies shall include, or be
endorsed to include,the following provision: On insurance policies where the County is named
as an additional insured, the County shall be an additional insured to the full limits of liability
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purchased by the Contractor even if those limits of liability are in excess of those required by this
Contract.
The County in no way warrants that the minimum limits contained herein are sufficient to protect
the Contractor from liabilities that might arise out of the performance of the work under this
Contract by the Contractor, its agents, representatives, employees, or subcontractors. The
Contractor shall assess its own risks and if it deems appropriate and/or prudent, maintain higher
limits and/or broader coverages. The Contractor is not relieved of any liability or other
obligations assumed or pursuant to the Contract by reason of its failure to obtain or maintain
insurance in sufficient amounts, duration, or types. Commercial General Liability Completed
Operations coverage must be kept in effect for up to three (3) years after completion of the
project.
A. Coverage and Limits of Insurance:
Contractor shall provide coverage with limits of liability not less than those stated below. An
umbrella and/or excess liability policy may be used to meet the minimum liability requirements
provided that the coverage is written on a"following form"basis.
1. Statutory Workers' Compensation: Colorado statutory minimums
a. Policy shall contain a waiver of subrogation against the County.
b. This requirement shall not apply when a contractor or
subcontractor is exempt under Colorado Workers' Compensation Act.,
AND when such contractor or subcontractor executes the appropriate
sole proprietor waiver form.
Minimum Limits:
Coverage A(Workers' Compensation) Statutory
Coverage B(Employers Liability) $ 500,000
$ 500,000
$ 500,000
2. Commercial General Liability—ISO 1CG 0001 form or equivalent
(With County named additional insured)
Minimum Limits:
General Aggregate $ 2,000,000
Products/Completed Operations Aggregate $ 2,000,000
Each Occurrence Limit $ 1,000,000
Personal/Advertising Injury $ 1,000,000
Fire Damage(Any One Fire) $ 50,000
Medical Payments(Any One Person) $ 5,000
Coverage to include:
• Premises and Operations
• Explosions, Collapse and Underground Hazards
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• Personal /Advertising Injury
• Products/Completed Operations
• Liability assumed under an Insured Contract(including defense costs assumed
under contract)
• Independent Contractors
• Designated Construction Projects(s) General Aggregate Limit, ISO CG 2503
(1997 Edition or equivalent)
• Additional Insured—Owners, Lessees or Contractors Endorsement, ISO Form
2010 (2004 Edition or equivalent)
• Additional Insured—Owners, Lessees or Contractors Endorsement, ISO CG 2037
(2004 Edition or equivalent)
• The policy shall be endorsed to include the following additional insured language
on the Additional Insured Endorsements specified above: "County, its subsidiary,
parent, associated and/or affiliated entities, successors, or assigns, its elected
officials, trustees, employees, agents, and volunteers named as an additional
insured with respect to liability and defense of suits arising out of the activities
performed by, or on behalf of the Contractor, including completed operations".
3. Auto Liability: Bodily injury and property damage for any owned, hired, and
non-owned vehicles used in the performance of this Contract.
Minimum Limits:
Bodily Injury/Property Damage(Each Accident) $ 1,000,000
4. Contractors Pollution Liability
The County requires this coverage whenever work at issue under this Contract
involves potential pollution risk to the environment or losses caused by pollution
conditions (including asbestos)that may arise from the operations of the
Contractor described in the Contractor's scope of services. Policy shall cover the
Contractor's completed operations. Contractors Pollution Liability coverage
(including Completed Operations) must be kept in effect for up to three (3) years
after completion of the project.
Coverage shall apply to sudden and gradual pollution conditions resulting from
the escape of release of smoke, vapors, fumes, acids, alkalis, toxic chemicals,
liquids, or gases, natural gas, waste materials, or other irritants, contaminants, or
pollutants (including asbestos). If the coverage is written on a claims-made basis,
the Contractor warrants that any retroactive date applicable to coverage under the
policy precedes the effective date of this Contract; and that continuous coverage
will be maintained or an extended discovery period will be exercised for a period
of three(3) years beginning from the time that work under this contract is
completed.
a. The policy shall be endorsed to include the following as Additional
Insureds: "Pitkin County, its subsidiary,parent, associated and/or affiliated
entities, successors, or assigns, its elected officials, trustees, employees, agents,
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and volunteers named as an additional insured with respect to liability and defense
of suits arising out of the activities performed by, or on behalf of the Contractor,
including completed operations".
Minimum Limits:
Per Loss $ 1,000,000
Aggregate $ 1,000,000
5.Professional Liability
The Contractor shall maintain Professional Liability covering wrongful acts,
errors and/or omissions, including design errors, if applicable, for damage
sustained by reason of or in the course of operations under this Contract resulting
from professional services provided by the Contractor as part of the
Contract. Contractors Professional Liability(Errors and Omissions)policy must
be kept in effect during the project and for up to three (3)years after completion
of the project.
The policy/coverages shall be amended to include the following:
a. Coverage shall apply for three (3) years after project is complete.
b. Policy is to be on a primary basis; if other professional coverage is
carried.
Per Loss $ 1,000,000
Aggregate $ 2,000,000
6. Builders'Risk Insurance or Installation Floater—Completed Value Basis
Unless otherwise provided, the Contractor shall purchase and maintain, in a company
or companies lawfully authorized to do business in the jurisdiction in which the Project
is located, Builders' Risk Insurance in the amount of the initial Contract Sum, plus
value of subsequent modifications, change orders, and cost of material supplied or
installed by others, comprising total value of the entire Project at the site on a
replacement cost basis without optional deductibles.
a. Policy must provide coverage from the time any covered property
becomes the responsibility of the Contractor, and continue without interruption
during construction, renovation, or installation, including any time during which
the covered property is being transported to the construction installation site, or
awaiting installation, whether on or off site.
b. Such Builders' Risk Insurance shall be maintained, unless otherwise
provided in the Contract Documents or otherwise agreed in writing by all
persons and entities who are beneficiaries of such insurance, until final payment
has been made or until no person or entity other than the County's has insurable
interest in the property to be covered, whichever is later.
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c. The Builders' Risk insurance shall include interests of the County and if
applicable, affiliated or associate entities, the General Contractor,
subcontractors and sub-tier contractors in the Project.
d. The Builders' Risk Coverage shall be written on a Special Covered Cause
of Loss form and shall include theft, vandalism, malicious mischief, collapse,
false-work,temporary buildings, transit, debris removal including demolition,
increased cost of construction, architect's fees and expenses, flood(including
water damage), earthquake, and if applicable, all below and above ground
structures,piping, foundations including underground water and sewer mains,
piling including the ground on which the structure rests and excavation,
backfilling, filling, and grading.
e. The Builders' Risk shall include a Beneficial Occupancy Clause. The
policy shall specifically permit occupancy of the building during
construction. Contractor shall take reasonable steps to obtain consent of the
insurance company and delete any provisions with regard to restrictions within
any Occupancy Clauses within the Builder's Risk Policy. The Builder's Risk
Policy shall remain in force until acceptance of the project by the County.
f. Equipment Breakdown Coverage (a.k.a. Boiler&Machinery) shall be
included as required by the Contract Documents or by law, which shall
specifically cover insured equipment during installation and testing(including
cold and hot testing).
g. The deductible shall not exceed $25,000 and shall be the responsibility of
the Contractor except for losses that involve all Acts of God such as flood,
earthquake, windstorm,tsunami, volcano, etc.
7. Special Coverages (check as appropriate and insert amount):
❑ (1)Performance Bond $
❑ Labor and Material $
❑ Payment Bond $
❑ (2)Professional Errors and Omissions
❑ (3)Aircraft Liability
❑ (4)Owner's Protective
❑ (5)Boiler and Machinery
❑ (6)Loss of Use Insurance
❑ (7)Crime, including Employee Dishonesty Coverage, or Fidelity Bond
B. Proof of Insurance:
1. Each insurance policy required by the insurance provisions of this
Contract shall provide the required coverage and shall not be suspended,voided or
canceled except after thirty (30) days prior written notice has been given to the County,
except when cancellation is for non-payment of premium,then ten(10) days prior notice
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may be given. Such notice shall be sent directly to (County Representative's Name&
Address). If the insurance carrier will not provide the required notice, the
Consultant/Contractor and or its insurance broker shall notify the County of any
cancellation, or reduction in coverage or limits of any insurance within seven(7)days of
receipt of insurers' notification to that effect.
Simultaneously with the Certificates of Insurance, the Contractor shall file with the
Procurement Officer a certified statement as to claims pending against the required coverages,
reserves established on account of such claims, defense costs expended and amounts
remaining on policy limits.
2. In addition,these Certificates of Insurance shall contain the following clauses:
a. The contractor's insurance shall be primary and non-contributory with
any insurance or self insurance purchased by the County.
b. The insurance companies issuing the policy or policies hereunder shall
have no recourse against the County of Pitkin for payment of any premiums
or for assessments under any form of policy.
c. Any and all deductibles or self insured retentions in the above-
described insurance policies shall be assumed by and be for the amount of,
and at the sole expense of the Contractor.
d. Location of operations shall be: "all operations and locations at which
work for the referenced Project is being done."
3. Certificates of Insurance for all renewal policies shall be delivered to the
County's Representative at least fifteen(15)days prior to a policy's expiration date except
for any policy expiring on the expiration date of this contract or thereafter.
4. The County reserves the right to request and receive a copy of any policy
and any policy endorsement at any time during the term of this contract.
VIII. Exemptions and Preferences.
A. All purchases of construction or building or any other materials for any Contract
shall not include Federal Excise Taxes or Colorado State or local sales or use taxes. Pitkin County
is exempt from such taxes under registration numbers 98-02624 and 84-78000-5K.
B. Pursuant to state statute and to the extent permitted by law, Colorado labor shall be
employed to perform the Project to the extent of not less than eighty percent (80%) of each type
or class of labor employed on such project; except for highway construction, which is subject to
C.R.S. § 43-2-208, which provides that all laborers shall be bona fide residents of Colorado with
a preference to residents of the County where the Project is performed.
IX. Protection and Restoration of Property and Landscape; Hazardous Materials.
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A. Protection and Restoration of Property and Landscape.
1. The Contractor shall be responsible for the preservation of all public and
private property and shall carefully protect from disturbance or damage all land and
property, as well as any monuments and property marks until the Procurement Officer has
witnessed or otherwise referenced their location and shall not remove them until directed.
2. The Contractor shall be responsible for all damage or injury to property of
any character, during the prosecution of the Project, resulting from any act, omission,
neglect,or misconduct in its manner or method of executing the Project,or at any time due
to defective Project work or materials, and said responsibility shall not be released until
the project shall have been completed and accepted.
3. When or where any direct or indirect damage or injury is done to public or
private property by or on account of any act, omission, neglect, or misconduct by the
Contractor in the execution of the Project, or in consequence of the non-execution thereof
by the Contractor, it shall restore, at its own expense, such property to a condition similar
or equal to that existing before such damage or injury was done, by repairing, rebuilding,
or otherwise restoring as may be directed, or it shall make good such damage or injury in
an acceptable manner.
4. Materials storage,equipment parking,vehicle parking and stockpiling excavated
materials shall be allowed only in those areas designated by the Procurement Officer.
5. If the Contractor disturbs any of the landscape not called for removal, it
shall restore those areas as directed by the Procurement Officer at the Contractor's expense.
B. Hazardous Materials
1. The County shall not be responsible for the cost of and the removal or
cleanup of Hazardous Materials found in any materials brought to the Project site, after the
Project site is turned over to the Contractor.
2. The Contractor shall provide the Procurement Officer with a written
certification each time materials or equipment is brought onto the Project site that such
materials or equipment do not contain Hazardous Materials.
X. County Work at the Project Site.
A. The County may perform other work related to the Project at the site by the
County's own forces, have other work performed by utility owners or let other direct contracts
therefor which shall contain terms similar to these. The Contractor shall perform and coordinate
its activities with other contractors to avoid conflict and minimize disruptions.
B. The Contractor shall afford each utility owner and other contractor who is a party
to such a direct contract (or the County if the County is performing the additional work with the
County's employees) proper and safe access to the site and a reasonable opportunity for the
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introduction and storage of materials and equipment and the execution of such work, and shall
properly connect and coordinate the work with theirs. The Contractor shall do all cutting, fitting
and patching of the Project that may be required to make its several parts come together properly
and integrate with such other work. The Contractor shall not endanger any work of others by
cutting, excavating or otherwise altering their work and will only cut or alter their work with the
written consent of Procurement Officer and the others whose work will be affected. The duties
and responsibilities of Contractor under this paragraph are for the benefit of such utility owners
and other contractors to the extent that there are comparable provisions for the benefit of the
Contractor in said direct contracts between the County and such utility owners and other
contractors.
C. If any part of the Contractor's Project depends for proper execution or results upon
the work of any such other contractor or utility owner(or the County),the Contractor shall inspect
and promptly report to the Procurement Officer in writing any delays, defects or deficiencies in
such work that render it unavailable or unsuitable for such proper execution and results. The
Contractor's failure to report such conditions will constitute an acceptance of the other work as fit
and proper for integration with the Contractor's Project except for latent or non-apparent defects
and deficiencies in the other work.
XI. Changes in the Project and Use of Change Orders.
A. The County may, from time to time,request changes in the scope of services of the
Contractor to be performed hereunder.
1. The Procurement Officer shall issue a notice informing the Contractor of a
planned change in the Project and requesting the Contractor's detailed price proposal and
adjusted schedule of work. The Contractor shall submit a priced proposal for performing
the proposed change in the Project within five (5) days of notice or such other time
acceptable to both parties. When the Contractor and the County reach agreement on the
adjustments to the Contract price and/or Contract time, and changes in the Project, such
adjustments shall be promptly recorded in an executed Change Order.
B. All Contractor initiated change requests shall be submitted to the County and the
Procurement Officer in a letter or written notice with the reference notation "Contractor Change
Request". If the Contractor: (i) receives any oral or written instructions, directives or
interpretations of Contract Documents, or determinations from the Procurement Officer or, (ii)
identifies what it believes are design errors or omissions in the Contract Drawings or
Specifications, or (iii) encounters a differing site condition; or, (iv) is delayed in the progress of
the Project; or, (v) becomes aware of any other matter or circumstance which it believes would
require a change in the Contract Price or Contract Time,the Contractor shall give the Procurement
Officer prompt written notice of such matters.
1. All Contractor change requests shall be dated, numbered sequentially, and
shall describe the action or event which the Contractor believes may require an extension
in time, price or other modification. The Contractor shall also provide descriptions of
possible Contractor actions or solutions to minimize the cost of the Contractor change
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request and, provide an estimate of the adjustment in the Contract price and/or Contract
time, which it believes is appropriate.
2. Contractor Time Requirements.
a. With respect to orders, instructions, directives, interpretations,
determinations,or the discovery of any errors or omissions in this Contract,
a Contractor change request shall be submitted before the Contractor acts
on them, but in no event more than ten(10)consecutive calendar days after
they were received or discovered.
b. With respect to any differing site conditions, a Contractor change
request shall be submitted before the conditions are disturbed, but in no
event more than ten(10) consecutive calendar days after the conditions are
first discovered.
c. With respect to delays, a Contractor change request shall be
submitted as soon as the Contractor has knowledge of the delay, but in no
event more than ten (10) consecutive calendar days therefrom.
d. With respect to any matters or circumstance which the Contractor
believes would require a change, including delays, a Contractor change
request shall be submitted as soon as the Contractor has knowledge of the
matter or circumstance, but in no event more than ten (10) consecutive
calendar days after the Contractor becomes aware of such circumstance or
matter.
3. Submittal Requirements and Waiver of Claims
a. If the Contractor does not submit a Contractor change request within
the time required above, any action by the Contractor related to such order,
direction, instruction, interpretation, determination, design error or
omission, or other matter, including delays or differing site conditions, will
not be considered by the County as a change to the Project and the
Contractor waives any claim for an adjustment on the Contract price or the
Contract time.
b. The Contractor shall, at the time a Contractor change request is
submitted provide the Procurement Officer with a complete and itemized
proposal of Contract price and time adjustments. The proposal shall also
contain a detailed explanation, citing all applicable provisions in this
Contract, which supports the Contractor change request. If the Contractor
does not submit its itemized proposal within the time described above or
within such extension, which the Procurement Officer, in his/her discretion
may have granted in writing, it waives any claim for an adjustment in the
Contract price or Contract time arising out of the act or event described in
the Contract change request.
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c. If a Contractor change request is denied by the Procurement Officer, in whole
or in part,any claim for an increase in the Contract price or Contract time arising
out of the act or event described in the Contractor change request is waived
unless the Contractor timely complied with the provisions of paragraphs 2(a-d)
of this Section.
d. All Changes to the design/plan shall have a revised drawing by the engineer
with elevations, stamped by Engineer and approved by the County prior to change
order submittal and work to be initiated. This includes Engineer directed
adjustments, on and off site direction by the Engineer, elevation changes,
positioning,methodology and schedule.
e. Changes to the scope of work shall not occur unless approved by both
the County and the Contractor in writing.
A change in the scope of work for purposes of the contact are
defined as follows:
1. Changes which vary the scope of work in the original scope of
work based on estimated construction costs.
2. Change orders involving the procurement of additional
subcontractors, not previously contemplated by the contract
documents.
XII. Warranty and Guarantee; Tests and Inspections; Correction, Removal or Acceptance of
Defective Project Work.
A. Warranty.
1. The Contractor warrants and guarantees to the County that all Project work,
whether supplied,furnished,installed,provided,or performed by Contractor,a subcontractor,
or supplier, will be in accordance with this Contract and will not be defective and that all
Project work shall be performed in a skillful and workmanlike manner. Additionally, the
Contractor shall warrant that all equipment which is incorporated into the Project or any
subsystem shall be new, free from liens and defects in design, have clear title, be free from
faulty materials and workmanship, and shall conform in all aspects to the terms of this
Contract, to the drawings issued for manufacture by the Contractor, and shall be in
conformance with the those technical specifications provided in Section II (Scope of Work)
of this Contract and Contractor's Proposal. Except where longer periods of warranty are
indicated for certain items, Contractor warrants Project work, whether furnished, installed,
provided, performed or supplied by Contractor, a subcontractor or supplier, to be free from
faulty materials and workmanship and that each piece of equipment or any part thereof
incorporated into the Project or any subsystem shall conform to the aforementioned warranty
and guarantee provisions and be free from failure for a period of not less than eighteen months
(18) months from date of Final Payment. Landscaping replacement shall be warranted for
two(2)growing seasons.
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2. With respect to all warranties, express or implied, from subcontractors,
manufacturers, or suppliers for Project work performed and materials furnished under the
Contract,the Contractor shall:
a. Obtain all warranties that would be given in normal commercial
practice. To the extent that the subcontractor's, manufacturer's, or supplier's,
standard warranty exceeds the minimum County requirements as set forth in
this Section or elsewhere in this Contract,the subcontractor's,manufacturer's,
or supplier's standard warranty shall apply.
b. Require all warranties to be executed,in writing, for the benefit of the
County, if directed by the Procurement Officer; or
c. Enforce all warranties for the benefit of the County, if directed by the
Procurement Officer.
d. Assign all warranties and guarantees in writing to the County upon the
request of the County.
2. Contractor is excluded from warranting the Engineer's design, engineer's on-site
direction and methods as per " As directed by Engineer" to Contractor and/or
Subcontractors if this differs from plans and drawings This exclusion shall pertain to
structural integrity and performance of the entire project. The Contractor, Subcontractors
and their employees shall not be held responsible for erosion,head cutting, material
displacement created by the design and/or Design Engineer's on site changes and
adjustments.
3. Contractor shall be excluded from all responsibilities as per the safety of all river
activist, spectators, and public using this recreational diversion as built per plans and
design by the Engineer which includes, but is not limited to, injury, entrapment,
drowning, slipping and falling and death.
B. Access to Project. The Procurement Officer and the Procurement Officer's
representatives,other representatives of the County,testing agencies and governmental agencies with
jurisdictional interests shall have access to the Project, at any time for their observation, inspecting
and testing. Contractor shall provide proper and safe conditions for such access.
C. Tests and Inspections.
1. The Contractor shall cooperate with material testing persons and firms, and
for required inspections, and compliance and approval tests for the work performed by the
Contractor or its subcontractor.
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2. If any laws, ordinances, rules, regulations, code or order of any public body
having jurisdiction requires any Project work (or part thereof) to specifically be inspected,
tested or approved, the Contractor shall assume full responsibility therefore, pay all costs in
connection therewith and furnish the Procurement Officer the required certificates of
inspection,testing or approval. The Contractor shall also be responsible for and shall pay all
costs in connection with any inspection or re-testing required in connection with the County's
or the Procurement Officer's acceptance of a supplier of materials or equipment proposed to
be incorporated in the Project, or of materials or equipment submitted for approval prior to
the Contractor's purchase thereof for incorporation in the Project. The cost of all inspections,
testing, re-testing and approvals in addition to the above which are required by this Contract
shall be paid by the Contractor (unless otherwise specified). The County will conduct and
pay for the conformance tests on materials installed in-place, and the Contractor shall pay for
re-testing of all failing and non-conforming materials thereafter.
3. All inspections, tests or approvals other than those required by laws,
ordinances, rule, regulations, code, or order of any public body having jurisdiction shall be
performed by organizations acceptable to the Procurement Officer.
4. If any Project work(including the work of others)that is to be inspected,tested
or approved is covered without written concurrence of the Procurement Officer, it must be
uncovered for observation. Such uncovering and testing when required by the Procurement
Officer shall be at the Contractor's expense.
5. Neither observations by the Procurement Officer nor inspections, tests or
approvals by others shall relieve the Contractor from the Contractor's obligations to perform
the Project in accordance with this Contract.
D. Correction or Removal of Defective Work. If required by the Procurement Officer or
the County, the Contractor shall promptly, as directed, either correct all defective Project work,
whether or not fabricated, installed or completed, or, if the Project work has been rejected by the
Procurement Officer or the County,remove it from the site and replace it with non-defective Project
work. The Contractor shall bear all direct, indirect and consequential costs of such correction or
removal (including but not limited to fees and charges of engineers, architects, attorneys and other
professionals)made necessary thereby.
E. Correction Period. If within two (2) years after the date of Final Payment or such
longer period of time as may be prescribed by laws or by the terms of any applicable special guarantee
required by the Contract Documents or by any specific provision of the Contract Documents, any
Project work is found to be defective, the Contractor shall promptly without cost to County and in
accordance with County's written instructions, either correct such defective Project work,or, if it has
been rejected by County, remove it from the site and replace it with non-defective Project work. If
the Contractor does not promptly(within seven(7)days from receipt)comply with the terms of such
instructions,or in an emergency where delay would cause serious risk of loss or damage,the County
may have the defective Project work corrected or the rejected Project work removed and replaced,
and all direct, indirect and consequential costs of such removal and replacement (including but not
limited to fees and charges of engineers,architects,attorneys and other professionals)will be paid by
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the Contractor. Contractor shall also pay for any damage to other Project work, other property, or
person,which occurred as a result of the defective Project work.
F. County May Correct Defective Work. If the Contractor fails within ten (10)
consecutive calendar days after written notice of the Procurement Officer or the County to proceed to
correct and to correct defective Project work or to remove and replace rejected Project work as
required by the Procurement Officer or the County in accordance with paragraph D of this Section,
or if the Contractor fails to perform the Project work in accordance with the Contract Documents,or
if the Contractor fails to comply with any other provision of the Contract Documents, the County
may, after seven (7) days' written notice to the Contractor, correct and remedy any such deficiency.
In exercising the rights and remedies under this paragraph the County shall proceed expeditiously to
the extent necessary to complete corrective and remedial action. The County may exclude the
Contractor from all or part of the site, take possession of all or part of the Project, and suspend the
Contractor's services related thereto, take possession of the Contractor's tools, appliances,
construction equipment and machinery at the site and incorporate in the Project all materials and
equipment stored at the site or for which the County has paid the Contractor but which are stored
elsewhere. The Contractor shall allow the County, the County's representatives, agents and
employees such access to the site as may be necessary to enable the County to exercise the rights and
remedies under this paragraph. All direct,indirect and consequential costs of the County in exercising
such rights and remedies will be charged against the Contractor, and a Change Order will be issued
by the County incorporating the necessary revisions in the Contract price. Such direct, indirect and
consequential costs will include but not be limited to fees and charges of engineers, architects,
attorneys and other professionals, all court costs and all costs of repair and replacement of work of
others destroyed or damaged by correction, removal or replacement of the Contractor's defective
Project work. The Contractor shall not be allowed an extension of the Contract time because of any
delay in performance of the Project work attributable to the exercise by the County of the County's
rights and remedies hereunder.
XIII. Liquidated Damages. It is the County's intent to complete this project no later than April
15, 2017. Liquidated damages of seven hundred dollars ($700.00) per calendar day shall be paid
if project is not completed by that deadline.
A. Time for Completion. It is hereby understood and mutually agreed, by and between
the Contractor and the County,that the date of beginning Project work and the time of completion as
specified herein are essential conditions of the Contract. The Contractor agrees that said Project shall
be prosecuted regularly, diligently, and at such rate of progress as will ensure completion within the
time(s) specified. It is expressly understood and agreed, by and between the Contractor and the
County,that the time(s) for completion of the Project described herein are reasonable time(s)for the
completion of the Project,taking into consideration the average climatic conditions prevailing in the
locality of the Project.
B. Time is of the Essence to the Contract. It is further agreed that time is of the essence
in completing the Project,and that the Project Work Schedule and all dates set forth therein and where
in this Contract, an additional time is allowed for the completion of the Project, the new time limit
fixed by such extension shall be of the essence of the Contract.
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C. Liquidated Damages. Completion of the Project is of paramount importance to the
County.If any portion of the Project is not completed in accordance with any time extensions granted
by the County,the County will suffer damage,the extent of which will be impractical and extremely
difficult to estimate accurately. Therefore, as part of the consideration for executing the Contract, it
is hereby agreed that the Contractor shall pay to the County the liquidated damage amounts specified
in the Contract. This particular provision shall not be construed as a penalty upon said Contractor for
failing fully to complete said Project as agreed in the Proposal and this Contract nor is it intended,but
as Liquidated Damages to compensate the County for all costs incurred as a result of such breach of
Contract.
D. Delays in Project Completion of Construction Phase. Subject to the terms of
"Excusable Delays", as contained in paragraph E of this Section, the Contractor expressly agrees to
pay the County as a reasonable estimate of just compensation for damages contemplated with the
clause,the amount set forth as liquidated damages for each consecutive calendar day that completion
is delayed in the construction of the Project.
E. Excusable Delays - Force Majeure. If, by reason of Force Majeure, any party hereto
shall be rendered unable wholly or in part to carry out its obligations under this Contract then such
party shall give notice and full particulars of such Force Majeure in writing to the other party within
a reasonable time after occurrence of the event or cause relied upon, and the obligation of the party
giving such notice, so far as it is affected by such Force Majeure, shall be suspended during the
continuance of the liability then claimed, but for no longer period, and any such party shall remove
or overcome such inability with all reasonable dispatch.The term Force Majeure as employed herein,
shall mean acts of God,strikes,lockouts,or other industrial disturbances,acts of public enemy,orders
of any kind of the Government of the United States or the State of Colorado or any political
subdivision, except the County, or any civil or military authority, insurrection, riots, epidemics,
landslides, lightning, earthquakes, fires, hurricanes, storms, floods, washouts, droughts, arrests,
restraint of government and people, civil disturbances, explosions, breakage or accidents to
machinery,pipelines,or canals,or other causes not reasonably within the control of the party claiming
such inability. It is understood and agreed that the settlement of strikes and lockouts shall be entirely
within the discretion of the party having the difficulty,and that the above requirement that any Force
Majeure shall be remedied with all reasonable dispatch shall not require the settlement of strikes and
lockouts by acceding to the demands of the opposing party or parties when such settlement is
unfavorable to it in the judgment of the party having the difficulty.
F. Cumulative Remedy. The liquidated damages referred to herein are intended to be
and are cumulative and shall be in addition to every other remedy now or hereafter enforceable at law,
in equity,by statute, or under Contract.
XIV. Termination of Contract.
A. The County may terminate this Contract upon the occurrence of any one or more of
the following events:
1. If the Contractor commences a voluntary case under any chapter of the
Bankruptcy Code(Title II,United States Code),as now or hereafter in effect,or if Contractor
21
takes any equivalent or similar action by filing a petition or otherwise under any other federal
or state law in effect at such time relating to the bankruptcy or insolvency;
2. If a petition is filed against Contractor under any chapter of the Bankruptcy
Code as now or hereafter in effect at the time of filing,or if a petition is filed seeking any such
equivalent or similar relief against Contractor under any other federal or state law in effect at
the time relating to bankruptcy or insolvency;
3. If the Contractor makes a general assignment for the benefit of creditors;
4. If a trustee, receiver, custodian or agent of Contractor is appointed under
applicable law or under Contract, whose appointment or authority to take charge of property
of Contractor is for the purpose of enforcing a Lien against such property or for the purpose
of general administration of such property for the benefit of Contractor's creditors;
5. If the Contractor persistently fails to perform the Project in accordance with
this Contract including but not limited to, failure to supply sufficient skilled workers or
suitable materials or equipment or failure to adhere to the work schedule established in this
Contract;
6. If the Contractor disregards laws, ordinances, rules, regulations, or orders of
any public body having jurisdiction;
B. Termination Prior to Expiration of Contract Term. The County has the right to
terminate this Contract, with or without cause, by giving written notice to the Contractor of such
termination and specifying the effective date thereof. Such notice shall be given at least ten (10)
days before the effective date of such termination. In such event all finished or unfinished
documents, data, studies and reports prepared by the Contractor pursuant to this Contract shall
become the County's property. Contractor shall be entitled to receive compensation in accordance
with the Contract for any satisfactory Project work completed pursuant to the terms of this Contract
prior to the date of termination. Notwithstanding the above, Contractor shall not be relieved of
liability to the County for damages sustained by the County by virtue of any breach of the Contract
by the Contractor.
XV. Independent Contractor Status.
A. The parties to this contract intend that the relationship between them contemplated
by the contract is that of independent contractor. Contractor, and any agent, employee, or servant
of Contractor shall not be deemed to be an employee, agent, or servant of Pitkin County.
B. Contractor is not required to offer his services exclusively to Pitkin County under
this contract. Contractor may choose to work for other individuals or entities during the term of
this contract,provided that the basic services and deliverable products required under this contract
are submitted in the manner and on the schedule defined under this contract.
22
C. Contractor warrants that all work produced will conform to all applicable industry
standard of care, skill and diligence in the performance of Contractor's obligations under this
contract.
D. Contractor shall not attempt to oversee or supervise the work or actions of any
Pitkin County employee, servant or agent in the course of completing work under this contract.
E. Contractor is not entitled to any Workers' Compensation benefits through Pitkin
County and is responsible for payment of any federal, state, FICA and other income taxes.
F. The Contractor shall be required to complete and submit to the County, a Form W-9
Taxpayer Identification Number Request.
XVI. Computation of Time.
A. When any period of time is referred to in this Contract by days,it will be computed to
exclude the first and include the last day of such period. If the last day of any such period falls on a
Saturday or Sunday or on a legal holiday, such day will be omitted from the computation.
B. All times stated in this Contract are of the essence.
XVII. Records and Cost Pricing Data.
A. The Contractor shall maintain in a safe place at the site one record copy of all
Drawings, Specifications, Addenda, Written Amendments, Change Orders, Project Directive
Changes, Field Orders and written interpretations and clarifications in good order and annotated
and updated weekly to show all changes made during construction. These record documents
together with all approved samples will be available to the Procurement Officer for reference.
Upon completion of the Project, these record documents and samples will be delivered to the
Procurement Officer for the County.
B. The Contractor shall maintain all data and records pertinent to the Project performed
under this Contract, in accordance with generally accepted accounting principles, and shall preserve
and make available all data and records until the expiration of three (3) years from the date of final
payment under this Contract, or for such longer period, if any, as is required by applicable statute or
by other articles of this Contract. The County shall have access to all such data and records for such
time period to inspect, audit and make copies thereof during normal business hours. The Contractor
covenants and agrees that it shall require that any subcontractor utilized in the performance of this
Contract permit the authorized representatives of the County to similarly inspect and audit all data
and records of said subcontractors relating to the performance of said subcontractors under this
Contract for the same time period.
C. If this Contract is completely or partially terminated,the records relating to the Project
terminated shall be made available for three(3)years after any resulting final termination payment.
23
D. Records pertaining to appeals or to litigation or the settlement of claims arising under
or relating to the performance of this Contract shall be made available until disposition of such
appeals, litigation, or claims.
XVIII. Miscellaneous.
A. Assignability. This Contract is not assignable by either party. Any use of
subcontractors by the Contractor for performance of this Contract must be accepted in writing by
the County.
B. Binding Arbitration. Any disputes arising out of this Contract shall be subject to
binding arbitration. The parties agree that any disputes concerning the terms and conditions of
this Contract shall be submitted and finally settled by arbitration. Arbitration shall be conducted
pursuant to the rules of the American Arbitration Association and shall be presided over by the
Pitkin County Hearing Officer appointed to arbitrate Pitkin County Contract disputes. Costs of
the arbitration shall be awarded to the substantially prevailing party.
C. Severability. If any term, section, or other provision of this Contract shall, for any
reason, be held to be invalid or unenforceable, the invalidity or unenforceability of such term,
section, or other provision shall not affect any of the remaining provisions of this Contract, and to
this end, each term, section and provision of this Contract shall be severable.
D. Integration and Modification. This Contract represents the entire and integrated
Contract between the County and the Contractor and supersedes all prior negotiations,
representations, or Contract, either written or oral. This Contract may be amended only by written
Contract signed by both the County and the Contractor.
E. Contract Made in Colorado. The parties agree that this Contract was made in
accordance with the laws of the State of Colorado and shall be so construed. Venue is agreed to
be exclusively in the courts of Pitkin County, Colorado.
F. Attorney's Fees. In the event that legal action is necessary to enforce any of the
provisions of this Contract including the arbitration described in this section, the substantially
prevailing party shall be entitled to its costs and reasonable attorney's fees.
G. Governmental Immunity. Contractor agrees and understands that Pitkin County is
relying on and does not waive the monetary limitations or terms or any other rights, immunities,
and protections provided by the Colorado Governmental Immunity Act,24-10-101,et seq.,C.R.S.,
as from time to time amended,or otherwise available to Pitkin County or any of its officers,agents
or employees. Further,nothing in this Contract shall be construed or interpreted to require or provide
for indemnification of the Contractor by the County for any injury to any person or any property
damage whatsoever which is caused by the negligence or other misconduct of the County or its agent
or employees.
H. Current Year Obligations. The parties acknowledge and agree that any payments
provided for hereunder or requirements for future appropriations shall constitute only currently
budgeted expenditures of Pitkin County. Pitkin County's obligations under this Contract are
24
subject to Pitkin County's annual right to budget and appropriate the sums necessary to provide
the services set forth herein. No provisions of the Contract shall constitute a mandatory charge or
requirement in any ensuing fiscal year beyond the then current fiscal year of Pitkin County.
25
I. Notice. Any notice required by this Contract shall be deemed delivered through
either of the following: (1)hand delivery to the person at the address below or(2)by certified first
class mail,postage prepaid, return receipt requested addressed as follows:
To Pitkin County with copies to:
Lisa MacDonald Pitkin County Attorney's Office
123 Emma Road#204 123 Emma Road#204
Basalt, CO 81621 Basalt, CO 81621
Fax: 970-920-5198 Fax: (970) 920-5198
Ph: 970-920-5191
To Contractor
Brian Barackman, President, Diggin' It Riverworks, Inc.
1204 Avenida del Sol #224
Durango, CO 81301
Ph: 970-306-2288
J. Waiver. No waiver by either party of any right, term or condition of this Contract
shall be deemed or construed as a waiver of any other right, term or condition, nor shall a waiver
of any breach hereof be deemed to constitute a waiver of any subsequent breach, whether of the
same or of a different provision of this Contract.
XIX. Contractor's Representations.
A. In order to induce County to enter into this Contract, Contractor makes the
following representations:
1. Contractor has familiarized himself with the nature and extent of this
Contract, Project, locality, and with all local conditions and federal, state, and local laws,
ordinances, rules and regulations that in any manner may affect cost, progress, or
performance of Project.
2. Contractor has carefully studied the site and has performed all necessary
investigations, tests, and subsurface investigations to define the latent physical conditions
of the construction site affecting cost,progress, or performance of Project.
3. Contractor has made or caused to be made examinations,investigations,and
tests and studies of such reports and related data as it deems necessary for the performance
of Project at the Contract price, within the Contract time, and in accordance with the other
terms and conditions of this Contract;and no additional examinations,investigations,tests,
reports, or similar data are or will be required by Contractor for such purposes.
4. Contractor has correlated the results of all such observations,examinations,
investigations,tests, reports and data with the terms and conditions of this Contract.
26
5. Contractor has given Procurement Officer written notice of all conflicts,
errors, or discrepancies that it has discovered in this Contract, and the written resolution
thereof by Procurement Officer is acceptable to Contractor.
6. By executing this Contract, the Contractor represents that it has visited the
site, familiarized itself with the local conditions under which the Project work is to be
performed (including weather conditions which can be expected), and correlated its
observations with the requirements of this Contract.
7. The undersigned representative of Contractor represents that it is an
authorized representative of Contractor for the purposes of executing this Contract and that
it has full and complete authority to enter into this Contract on behalf of Contractor.
XX. Counterparts. This Contract may be executed in multiple counterparts,each of which shall
constitute an original, but all of which shall constitute one and the same document.
XXI. Public Contracts for Services and Public Contracts with Natural Persons. In conformance
with the provisions of C.R.S. § 8-17.5-101 and 102, as amended and C.R.S. § 24-76.5-101, as
amended
PUBLIC CONTRACTS FOR SERVICES. CRS §8-17.5-101. [Not Applicable to agreements
relating to the offer, issuance, or sale of securities, investment advisory services or fund
management services,sponsored projects, intergovernmental agreements, or information
technology services or products and services] Contractor certifies, warrants, and agrees that it
does not knowingly employ or contract with an illegal alien who will perform work under this
contract and will confirm the employment eligibility of all employees who are newly hired for
employment in the United States to perform work under this contract,through participation in
the E-Verify Program or the Department program established pursuant to CRS §8-17.5-
102(5)(c), Contractor shall not knowingly employ or contract with an illegal alien to perform
work under this contract or enter into a contract with a subcontractor that fails to certify to
Contractor that the subcontractor shall not knowingly employ or contract with an illegal alien to
perform work under this contract. Contractor(a) shall not use E-Verify Program or Department
program procedures to undertake pre-employment screening of job applicants while this contract
is being performed, (b) shall notify the subcontractor and the contracting State agency within
three days if Contractor has actual knowledge that a subcontractor is employing or contracting
with an illegal alien for work under this contract, (c) shall terminate the subcontract if a
subcontractor does not stop employing or contracting with the illegal alien within three days of
receiving the notice, and (d) shall comply with reasonable requests made in the course of an
investigation, undertaken pursuant to CRS §8-17.5-102(5), by the Colorado Department of Labor
and Employment. If Contractor participates in the Department program, Contractor shall deliver
to the contracting State agency, Institution of Higher Education or political subdivision a written,
notarized affirmation, affirming that Contractor has examined the legal work status of such
employee, and shall comply with all of the other requirements of the Department program. If
Contractor fails to comply with any requirement of this provision or CRS §8-17.5-101 et seq.,
the contracting State agency, institution of higher education or political subdivision may
terminate this contract for breach and, if so terminated, Contractor shall be liable for damages.
27
PUBLIC CONTRACTS WITH NATURAL PERSONS.CRS §24-76.5-101.Contractor,if a
natural person eighteen(18)years of age or older,hereby swears and affirms under penalty of
perjury that he or she(a)is a citizen or otherwise lawfully present in the United States pursuant to
federal law, (b)shall comply with the provisions of CRS §24-76.5-101 et seq., and(c)has produced
one form of identification required by CRS §24-76.5-103 prior to the effective date of this contract.
28
IN WITNESS WHEREOF,the parties have executed this Contract as of the date first set out
herein above.
CONTRACTOR: DIGGIN' IT RIVER WORKS, INC.
By:
Name Title
ACj45 y7 ZO/(
Date/
PITKIN COUNTY, COLORADO
MANAGER APPROVAL:
/411 —0-111P-
Coun Manager Date
RECOMMENDED FOR APPROVAL:
Authz
g /4
ate
29
IN WITNESS WHEREOF,the parties have executed this Contract as of the date first set out
herein above.
CONTRACTOR: DIGGIN' IT RIVER WORKS, INC.
By: `—
Name Title
Date
PITKIN COUNTY, COLORADO
MANAGER APPROVAL:
�.� Vete
County Manager Date
RECOMMENDED FOR APPROVAL:
Authorized Signer Date 3 g/D/ja i
RAcke e,
29
NE
TECHNICAL SPECIFICATIONS
Pitkin County Recreational In-channel Diversion (RICD) Project,
Roaring Fork River above Basalt, Colorado
June 6, 2016
Addendum #1 —June 16, 2016
OWNER:
Pitkin County
530E. Main Street
Aspen, CO 81611
ENGINEER:
RiverRestoration.org
Jason Carey PE
P.O. Box 248
Carbondale, CO 81623
Contents
SECTION 1 SCOPE OF WORK 3
1.01 GENERAL 3
1.02 KEY PROJECT PERSONNEL CONTACTS 3
1.03 CONTRACTOR PRE-QUALIFICATIONS 4
1.04 MEASUREMENT AND PAYMENT 4
SECTION 2 GENERAL CONSTRUCTION METHODS 18
2.01 PROJECT LIMITS 18
2.02 PERMITS 18
2.03 SITE INTEGRITY 18
2.04 UTILITIES 18
2.05 TEMPORARY FACILITIES 18
2.06 CONSTRUCTION STAKING 20
2.07 SITE GRADING 20
2.08 ACCEPTABLE AS BUILT ELEVATION VARIATIONS(feet) 21
2.09 UTILIZING IN-CHANNEL MATERIALS 21
2.10 TEMPORARY DIVERSION STRUCTURES 21
2.11 TRAFFIC CONTROL PLAN 22
2.12 IN-CHANNEL CONSTRUCTION TIMING 22
2.13 TIMING OF PLANTING. 24
2.14 TURBIDITY MONITORING 24
SECTION 3 BEST MANAGEMENT PRACTICES 25
3.00 GENERAL 25
3.01 CONSTRUCTION SEQUENCING 25
3.02 CHANNEL ACCESS 28
3.03 EQUIPMENT OPERATING IN WET CHANNELS 28
3.04 OIL BOOM 28
3.05 PERMEABLE TURBIDITY CURTIAN 29
3.06 STRAW BALES AND EROSION LOGS 29
3.07 SILT FENCE 29
3.08 FILTERING OF PUMPTED WATER 29
3.09 REMOVAL OF BMPs 30
3.10 RIPARIAN PROTECTION 30
3.11 MATURE TREE PROTECTION 30
3.12 ENVIRONMENTAL PROTECTION 31
3.13 BARRIERS 31
3.14 PROJECT SITE REHABILITATION 32
3.15 SANITARY WASTE MANAGEMENT 32
3.16 CULTURAL RESOURCES 32
3.17 EMMA ROAD STAGING AND DISPOSAL AREA 32
SECTION 4 IN-CHANNEL AND BANK CONSTRUCTION 33
4.01 GENERAL 33
4.02 CHANNEL CONSTRUCTION METHODS 33
4.03 CONSTRUCTION OF BOULDER STRUCTURES 33
4.04 GEOTEXTILES 35
4.05 GRADED GRAVEL BEDDING 36
4.06 CRUSHER FINES 37
4.07 CDOT AGGREGATE BASE,CLASSES 2 AND 6 37
4.08 PERFORMANCE ADJUSTMENTS 37
SECTION 5 CONSTRUCTION OF CONCRETE STRUCTURES 39
5.01 GENERAL 39
5.02 PRECAST CONCRETE 39
5.03 PRE-CAST BASE STRUCTURES 41
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5.04 PRE-CAST LID STRUCTURES 41
5.05 PRE-CAST STRUCTURE PLACEMENT 42
5.06 PRE-CAST INTERNAL FILL 42
SECTION 6 LANDSCAPING 43
6.01 PLANTINGS 43
6.02 EROSION CONTROL BLANKET 45
6.03 TOP SOIL 46
6.04 LANDSCAPE IRRIGATION 47
SECTION 7 HYDROLOGY 48
7.01 HYDROLOGY 48
7.02 APPROXIMATE WSEL 53
SECTION 8 MODIFICATIONS TO TIME OF COMPLETION 55
8.1 CONSTRUCTION WINDOW 55
SECTION 9 DEFINITIONS 56
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SECTION 1 SCOPE OF WORK
1.01 GENERAL
This Project is for the Installation of a Recreational In-channel Diversion facility on and adjacent
to the Roaring Fork River main channel near Basalt, CO. This Project is expected to be
complete by April 15`", 2017, with in-stream construction complete by February 15, 2017.
The scope of this project is to: construct 2 recreational in-channel diversion recreation features,
install bank stabilization, install 5 geomorphic structures, and maintain care of water throughout
construction.
In accordance with these Specifications and as shown on the Project Drawings. Project
Drawings include 27 plates; G1 is the cover page, Cl-C11 are construction drawings, D 1-D8
show details, and CW01-CW05 show a feasible Care of Water Plan. Three (3) exhibits are also
attached.
— Exhibit A: Section 401 Water Quality Certification No:. 4206
— Exhibit B: U.S. Army Corps of Engineers Individual Permit number SPA-2008-00345-
SCO (extension expected June 2016)
— Exhibit C: Town of Basalt Ordinance No. 18
1.02 KEY PROJECT PERSONNEL CONTACTS
References to the OWNER are to the Pitkin County, Colorado.
A. The following is a list of Project stakeholders and their contact information. CONTRACTOR
shall notify all stakeholders 7 days prior to construction:
1. Pitkin County(OWNER)
Mr. John Ely
County Attorney
530E. Main Street 3rd Floor
Aspen, CO 81611
(970) 920-5190 -phone
(970) 920-5198 -fax
john.ely@co.pitkin.co.us
2. ENGINEER •
Jason Carey, P.E.
Principal River Engineer
RiverRestoration.org, LLC.
PO Box 248
Carbondale, CO 81623
(970) 389-5987 -cell
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(970) 947-9568—work
jason.carey@riverrestoration.org
3. Colorado Parks and Wildlife (CPW)
Kendall Bakich
Aquatic Biologist, Area 8
0088 Wildlife Way
Glenwood Springs CO 81601
(970) 947-2924 -phone
(970) 947-2936—fax
kendall.bakich@state.co.us
4. Town of Basalt
Mike Scanlon
Town Manager
101 Midland Ave
Basalt, CO 81621
(970) 929-4378
mike.scanlon@basalt.net
1.03 CONTRACTOR PRE-QUALIFICATIONS
Prospective bidders shall pre-qualify as follows:
A CONTRACTOR must possess adequate tenacity, perseverance, experience, integrity,
reliability, capacity, facilities, equipment, and credit. The opinion of whether a CONTRACTOR
may possess these criteria is at the sole discretion of the OWNER.
CONTRACTOR shall demonstrate record of successful and timely completion of aesthetic and
environmental river work awarded during the last five years. CONTRACTOR shall submit a
Statement of Qualifications (SOQ) that describes three (3) relevant projects of similar scope and
experience in River related work. Up to date project owner references shall be included. The
SOQ shall demonstrate extensive experience in the care of natural river flows and Best
Management Practices that significantly reduce environmental impacts associated with
construction. The SOQ shall identify the key personnel and all subcontractors that shall perform
work. Pre-qualification shall be delivered to the OWNER on or before the mandatory pre-bid
meeting, Date TBD at 10 am at Town of Basalt Offices (101 Midland Ave). Late submissions
will not be considered.
1.04 MEASUREMENT AND PAYMENT
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1.04.1 —Detailed descriptions of the measurement and work descriptions for each bid item are
included for bid purposes only. The project will be bid lump sum for the entirety of the work.
See Instruction to Bidders Section for more information.
1.04.2. - Refer to Technical Specifications and Details for more detailed information to the
following bid items, if applicable.
Bid Item No. 1
MOBILIZATION/DEMOBILIZATION/BONDING/INSURANCE
A. Measurement is per Lump Sum(LS).
B. Work includes, but is not limited to: providing all required bonds and insurance;
mobilization; demobilization; installation of temporary work area facilities; bringing and
removing all necessary construction equipment to and from the site;obtaining construction
permits; and any and all incidentals.
Bid Item No.2
CONSTRUCTION SURVEY AND STAKE
A. Measurement is per Lump Sum(LS).
B. Work will for furnishing all material, equipment, labor, and incidentals necessary to
complete the work as specified. This work will include locating and marking all underground
utilities that may be present with the project area. The CONTRACTOR is solely responsible
for identifying and marking utilities present on the site.
No separate or additional payment will be made for any temporary protection and direction
of traffic measures including flaggers and signing necessary for the performance of the
construction survey work. No separate or additional payment will be made for preparing
surveying documents including but not limited to office time, preparing and checking survey
notes, and all other related preparation work. CONTRACTOR will be solely responsible for
construction staking. Costs incurred caused by survey errors will be at no additional cost to
the OWNER. Repair any damage to the Work caused by CONTRACTORS' survey errors at
no additional cost to the OWNER. The ENGINEER may make an equitable adjustment,
which may decrease the Contract Amount, if the required survey work is not performed.
Bid Item No.3
TRAFFIC CONTROL
A. Measurement is per Lump Sum(LS).
B. Meet or Exceed APWA 2007 Standard Specification 01 55 26 and Technical Specifications.
C. Work includes development, submittal and maintenance of Project's traffic control plan
described in Section 2.11 of these specifications. Work includes all materials, labor and
equipment required to provide traffic control for vehicles, bicyclists, pedestrians and river
users for the duration of construction. Traffic control shall meet all requirements of CDOT,
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Pitkin County and Town of Basalt. Any additional traffic control measures required during
construction based on input from CDOT, Pitkin County or Town of Basalt will be installed
and maintained at the contractor's expense.
Bid Item No. 4
CONSTRUCTION SIGNAGE/STAGING FENCE
A. Measurement is per Lump Sum(LS)
B. Work includes, but is not limited to: providing and maintaining all signage and fencing
required in the vicinity of construction to demarcate the project limits and the area of
disturbance. Work also covers furnishing all equipment, labor, and incidentals necessary to
complete the work as specified.
Bid Items No. 5
PROTECT IN PLACE
A. Measurement is per Lump Sum(LS).
B. Work covers taking necessary measures to ensure that all existing vegetation called out on
plans as Protect in Place (PIP)are not adversely affected by construction activities. Work
also includes protecting existing utilities, structures and ground not called out in the plans for
disturbance. This will include utilities not identified on the plans that may be discovered
during the contractors utility locate effort. Work covers furnishing all equipment, labor, and
incidentals necessary to complete the work as specified. Any cost associated with temporary
outages or repairing utility, as determined by Pitkin County, shall be wholly the
responsibility of the CONTRACTOR.
Bid Items No. 6
CONSTRUCTION ACCESS
A. Measurement is per Lump Sum(LS).
B. Work includes the installation and maintenance of temporary access roads, ramps and other
access points required for construction of the project. Work covers furnishing all materials,
equipment, labor, and incidentals necessary to complete the work as specified. The work also
includes removal of all material associated with the access roads upon the completion of the
project. The revegetation of the disturbed areas is not included in this bid item.
Bid Item No. 7
EROSION AND SEDIMENT CONTROL
A. Measurement is per Lump Sum(LS).
B. Work covers the management of the project Erosion and Sediment Control program. This
works includes all materials, equipment, labor and incidentals associated with preparing
Erosion and Sediment Control plan, performing regular inspections and documentation of
installed erosion and sediment control BMPs and cleanout and maintenance of erosion and
sediment control BMPs as required during project construction.
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Bid Items No. 8
SILT FENCE
A. Measurement is per Lump Sum(LS).
B. Work covers design/layout, implementation/installation of silt fences and maintenance in
place, for the duration of the project. Work also covers furnishing all equipment, labor, and
incidentals necessary to complete the work as specified.
Bid Items No. 9
EROSION CONTROL LOGS
A. Measurement is per Linear Feet (LF) as measured in place.
B. Work covers design/layout, implementation/installation of erosion logs and maintenance in
place, for the duration of the project. Work also covers furnishing all equipment, labor, and
incidentals necessary to complete the work as specified.
Bid Item No. 10
BYPASS PIPE TRENCH EXCAVATION AND BACKFILL
A. Measurement is per Cubic Yard (CY)of excavation.
B. Work covers excavation for the installation of the temporary bypass pipe system. Includes
rock and boulder excavation. Includes excavation, hauling, and permanent disposal off site of
unsuitable materials, and all incidental work and materials. Includes stockpiling of suitable
materials for reuse including sorting and stockpiling of approved boulders greater than 32
inches diameter. It also includes all costs associated with backfilling the alluvium materials
into the temporary bypass pipe trench upon completion of the project and restoring the
disturbed area to original grade. Revegetation efforts are not included in this bid item. Any
cost associated with temporary outages or repairing utility, as determined by Pitkin County,
shall be wholly the responsibility of the CONTRACTOR.
Bid Items No. 11 and 57
WASHING OF FINES INTO INSTALLED ALLUVIUM
C. Measurement is per Cubic Yard (CY)of backfill.
A. Work covers furnishing and installing Fines into the alluvium in areas shown in the plans.
The work includes all materials, equipment and labor necessary to furnish, haul, install and
power wash fines into the alluvium as detailed in the Technical Specifications. Revegetation
efforts are not included in this bid item. Any cost associated with temporary outages or
repairing utility, as determined by Pitkin County, shall be wholly the responsibility of the
CONTRACTOR.
Bid Item No. 12
FURNISH AND INSTALL 60-INCH BYPASS PIPE
B. Measurement is per Linear Foot (LF) of pipe.
•
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C. Work covers furnishing and installing 60-inch bypass pipes as directed on plans. Work also
covers furnishing all equipment, labor, and incidentals necessary to complete the work as
specified.
Bid Item No. 13
DEMO AND DISPOSE 60-INCH BYPASS PIPE
A. Measurement is per Linear Foot (LF)of pipe.
B. Work covers removing, transporting and properly disposing of 60-inch bypass pipes as
directed on plans. Work also covers furnishing all equipment, labor, and incidentals
necessary to complete the work as specified.
Bid Item No. 14
ALLUVIUM BALLAST PLACED ON PIPE EVERY 50'
A. Measurement is per Cubic Yard (CY)of alluvium.
B. Work covers placing alluvium ballasts every 50 feet as directed on plans or in the field by the
engineer. CONTRACTOR can assume that material from the bypass pipe trench excavation
can be used for the alluvium ballast. Work covers furnishing all equipment, labor, and
incidentals necessary to complete the work as specified. It also includes all work associated
the removal of the alluvium upon completion of the project and backfilling the material into
the temporary bypass trench.
Bid Item No. 15
TEMPORARY BYPASS OUTLET POOL EXCAVATION AND BACKFILL
A. Measurement is per Cubic Yard (CY)of excavation.
B. Work covers excavation for installation of outlet pool. Includes rock and boulder excavation.
Includes excavation, hauling, and permanent disposal offsite of unsuitable materials, and all
incidental work and materials. Includes stockpiling of suitable materials for reuse including
sorting and stockpiling of approved boulders greater than 32 inches diameter. Includes
backfilling of suitable materials and compaction per the technical specifications. Includes
protect in place all utilities. Any cost associated with temporary outages or repairing utility,
as determined by Pitkin County, shall be wholly the responsibility of the CONTRACTOR.
Work includes all labor, equipment, and materials required to complete the work. Work also
includes, but is not limited to: BMP's, stockpiling, handling, and work area isolation as
required.
Bid Item No. 16
TEMPORARY BOULDER BANK PROTECTION AT BYPASS OUTLET
A. Measurement is per Tons (TONS)of boulder placed.
B. Work covers placing boulder protection on existing bank adjacent to bypass outlet. Work
also covers installing boulder to the extents and elevations show on the plans and/or as
directed by the ENGINEER. Work includes all labor, equipment, and materials required to
complete the work. Work includes, but is not limited to: BMP's, stockpiling, handling, work
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area isolation(as required), installation, compaction and adjustments based on ENGINEER's
direction.
Bid Item No. 17
TEMPORARY BOULDER ENERGY DISSIPATION BASIN
A. Measurement is per Tons (TONS)of boulder placed.
B. Work covers installing alluvium and boulder to the extents and elevations shown on the plans
and as directed by the ENGINEER. Work includes all labor, equipment, and materials
required to complete the work. Work includes, but is not limited to: BMP's, stockpiling,
handling, work area isolation (as required), installation, compaction and adjustments based
on ENGINEER's direction
Bid Item No. 18
FURNISH AND INSTALL SHEET PILE COFFER DAM
A. Measurement is per Square Feet(SF)of sheet pile installed.
B. Work covers furnishing, installing and maintaining sheet pile coffer dams as directed on
plans and by the ENGINEER in the field. The work associated with this bid item also
includes the installation of sand bags and/or alluvium around entrance to the bypass pipes as
shown on the plan. Work covers furnishing all equipment, labor, and incidentals necessary
to complete the work as specified.
Bid Item No. 19
DEMO AND DISPOSE SHEET PILE COFFER DAM
A. Measurement is per Square Feet(SF)of sheet pile installed.
B. Work covers removing, transporting and properly disposing of sheet pile coffer dam material
offsite. Work covers furnishing all equipment, labor, and incidentals necessary to complete
the work as specified.
Bid Item No.20
FURNISH, INSTALL,AND MAINTAIN OIL BOOM
A. Measurement is per Lump Sum(LS).
B. Work covers installing and maintaining oil booms as shown on plans prior to and throughout
construction. The work associated with this bid item includes maintenance of oil boom and
proper disposal of oil boom and all material it has collected. Work covers furnishing all
equipment, labor, and incidentals necessary to complete the work as specified.
Bid Item No.21
DEWATERING OF WATER IN ISOLATED AREA
A. Measurement is per Lump Sum(LS).
B. Work covers maintaining necessary de-watering during construction. This may include
gravity feed dewatering systems or pumped systems as the CONTRACTOR deems
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necessary. Work associated with this bid item also includes removal and proper disposal of
equipment and materials required for de-watering once no longer required on site. Work
covers furnishing all equipment, labor, and incidentals(to include but not limited to
fuel/power to operate pumps) necessary to complete the work as specified.
Bid Item No.22
FILTERING OF WATER FROM ISOLATED AREA
A. Measurement is per Lump Sum(LS).
B. Work covers filtering water to meet local and state environmental requirements prior to
returning it to the river throughout the construction period. Work covers furnishing all
equipment, labor, and incidentals necessary to complete the work as specified.
Bid Items No. 23
FILTERED MATERIAL DISPOSAL
A. Measurement is per Cubic Yards(CY) of filter material.
B. Work covers disposal of material collected during de-water filtering during construction.
Work covers furnishing all equipment, labor, and incidentals necessary to complete the work
as specified.
Bid Items No. 24 and 65
BOULDER RE-SETTING
A. Measurement is per Tons(TONS) of boulder.
B. Work covers re-setting existing boulder along right(Two Rivers Road)bank and near
Fisherman's Park as shown in plans and as directed by ENGINEER. Work covers furnishing
all equipment, labor, and incidentals necessary to complete the work as specified.
Bid Items No. 25
FURNISH AND INSTALL FILTER FABRIC
A. Measurement is per Square Yards (SY)of non-woven filter fabric installed in between the
existing bank and bed material and boulders along the banks. Embedded lengths of erosion
control fabrics, vertical faces, and overlapped fabric shall not be included in the quantities.
B. Work covers installing non-woven filter fabric. Work includes, but is not limited to: BMP's;
providing all necessary good quality materials; labor; fasteners;excavation; installation per
manufacturers recommendations; and any and all incidentals such as overlap at edges and
tucking into bank; storing, and protecting fabric from tears or damage throughout
construction.
Bid Items No. 26
FURNISH AND INSTALL GEO-COMPOSITE
A. Measurement is per Square Yards (SY)of geo-composite installed in between the existing
bank material and boulders along the banks. Embedded lengths of geo-composite, vertical
faces, and overlapped fabric shall not be included in the quantities.
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B. Work covers furnishing and installing the geo-composite layer. Work includes, but is not
limited to: BMP's;providing all necessary good quality materials; labor; fasteners;
excavation; installation per manufacturers recommendations;and any and all incidentals such
as overlap at edges and tucking into bank; storing, and protecting geo-composite from tears
or damage throughout construction.
Bid Items No. 27, 55,66 and 77
CHANNEL ALLUVIUM AND BANK MATERIAL EXCAVATION
A. Measurement is per Cubic Yards (CY) of excavation.
B. Work covers excavating channel alluvium and/or bed material to elevations shown on and as
directed by ENGINEER. Work covers furnishing all equipment, labor, and incidentals
necessary to complete the work as specified. Any cost associated with temporary outages or
repairing utility, as determined by Pitkin County, shall be wholly the responsibility of the
CONTRACTOR.
Bid Items No. 28 and 78
EXCAVATION BACKFILL
A. Measurement is per Cubic Yards (CY) of backfill.
B. Work covers backfilling alluvium to the extents and elevations show on the plans and as
directed by the ENGINEER. If required for a particular area, the work also includes power
washing fines into the alluvium as detailed in the Technical Specifications. Work includes all
labor, equipment, and materials required to complete the work. Work also includes, but is not
limited to: BMP's, stockpiling, handling, work area isolation(as required), installation,
compaction and adjustments.
Bid Items No. 29,35,45,58,72,and 79
HAUL OFF AND DISPOSAL OF EXCAVATED MATERIAL OFFISTE
A. Measurement is per CY of offsite disposal per limits of excavation defined in plans.
B. Work covers handling and dewatering materials onsite and hauling and disposing of
materials off site. Work includes, but is not limited to: BMP's; unclassified excavation per
plans and specs;debris removal, sorting material; stockpiling material; supplying equipment;
loading; hauling; handling;disposal fees; and any and all incidentals.
Bid Items No. 30,36,46 and 59
SCREEN AND HAUL OF EXCAVATED MATERIAL TO DISPOSAL SITE ON EMMA
ROAD
C. Measurement is per CY of Emma Road site disposal per limits of excavation defined in
plans.
D. Work covers handling and dewatering materials onsite and hauling and disposing of
materials at the designated area on Emma Road. Work also includes screening material to
remove all wood and debris, plus cobbles/boulders/rock greater than 5-inches in diameter.
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Work includes, but is not limited to: BMP's; unclassified excavation per plans and specs;
debris removal, screening/sorting material; stockpiling material; supplying equipment;
loading; hauling; handling; disposal fees; and any and all incidentals.
Bid Items No. 31, 37,and 47
FURNISH AND PLACE 60 INCH BOULDER
A. Measurement is per Tons (TONS)of boulder.
B. Work covers furnishing and installing 60-inch class boulders along the right bank toe and for
construction of wave features as shown in plans and as directed by ENGINEER. See
Technical Specifications for a gradation of"60-inch boulder"and for placement
requirements. Work includes furnishing all equipment, labor, and incidentals necessary to
complete the work as specified.
Bid Items No. 32 and 43
CHANNEL ALLUVIUM AND BOULDER EXCAVATION
A. Measurement is per Cubic Yards (CY) of excavation.
B. Work covers excavating and stockpiling channel bed material as shown in plans and/or as
directed by ENGINEER. Work includes, but is not limited to: BMP's; unclassified
excavation per plans and specs; debris removal, sorting material; stockpiling material;
supplying equipment; loading; hauling; handling; and any and all incidentals. Work includes
furnishing all equipment, labor, and incidentals necessary to complete the work as specified.
Bid Item No.33 and 44
BACKFILL WAVE FEATURES WITH NATIVE ALLUVIUM
A. Measurement is per Cubic Yards(CY) of backfill.
B. Work covers backfilling around pre-cast wave blocks and filling voids of boulder matrix with
native alluvium to the extents and elevations show on the plans and as directed by the
ENGINEER. Work includes all labor, equipment, and materials required to complete the
work. Work also includes, but is not limited to: BMP's, stockpiling, handling, work area
isolation(as required), installation, compaction and adjustments.
Bid Item No.34
GRADE ALLUVIUM POOL/RIFFLE MAIN CHANNEL STA. 15+50
A. Measurement is per Cubic Yard(CY)of alluvium.
B. Work covers augmenting riffle as shown on plans and directed by ENGINEER in field.
CONTRACTOR to assume that alluvial fill material required to augment the riffle will be
available from elsewhere on the site. Work includes furnishing all materials, equipment,
labor, and incidentals necessary to complete the work as specified.
Bid Items No. 38 and 48
FURNISH AND DELIVER PRECAST CONCRETE WAVE BLOCK STRUCTURE
A. Measurement is per Each(EA).
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B. Work covers furnishing and precast concrete wave block structures meeting the
specifications detailed in the Plans and Technical Specifications. Work includes furnishing
all equipment, labor, and incidentals necessary to complete the work as specified.
Bid Item No.39 and 49
PRECAST CONCRETE WAVE BLOCK STRUCTURE PLACED
A. Measurement is per Each (EA).
B. Work covers placing precast concrete structures. Structures shall be installed to locations
and elevations specified on plans and as directed by ENGINEER. Work includes covers
furnishing all equipment, labor, and incidentals necessary to complete the work as specified.
Bid Item No. 40 and 50
FURNISH DELIVER AND PLACE GROUT
A. Measurement is per Cubic Yard (CY) of pumped grout.
B. Work covers furnishing and delivering grout and pumping into precast concrete structures.
Structures shall be installed to locations and elevations specified on plans and as directed by
ENGINEER. Work includes furnishing all materials, equipment, labor, and incidentals
necessary to complete the work as specified.
Bid Item No. 41 and 51
FURNISH AND PLACE 3/1" WASHED GRAVEL
A. Measurement is per Cubic Yard (CY)of screened gravel bedding.
B. Work covers furnishing and placing and compacting 3/4-inch washed gravel bedding beneath
precast concrete wave block structures as shown on plans. Work includes furnishing all
equipment, labor, and incidentals necessary to complete the work as specified.
Bid Item No. 42
PERFORMANCE ADJUSTMENT OF DOWNSTREAM FEATURE
C. Measurement is per hour(HR)of labor and equipment operation.
D. Work covers adjusting boulders and alluvium associated with the downstream whitewater
feature after installation is complete and the diversion system is removed, but prior to
substantial completion of the project. Adjustment will be directed by the ENGINEER in the
field. Work includes furnishing all equipment, labor, and incidentals necessary to complete
the work as specified. Equipment operating within the running water of the Roaring Fork will
be required to use biodegradable fluids per the Technical Specification.
Bid Item No. 52
PERFORMANCE ADJUSTMENT OF UPSTREAM FEATURE
E. Measurement is per hour(HR)of labor and equipment operation.
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F. Work covers adjusting boulders and alluvium associated with the upstream whitewater
feature after installation is complete and the diversion system is removed, but prior to
substantial completion of the project. Adjustment will be directed by the ENGINEER in the
field. Work includes furnishing all equipment, labor, and incidentals necessary to complete
the work as specified. Equipment operating within the running water of the Roaring Fork will
be required to use biodegradable fluids per the Technical Specification.
Bid Item No. 53
PLACE HABITAT BOULDERS
A. Measurement is per Tons (TONS) of boulder.
B. Work covers placing habitat boulders as specified in plans and as directed by ENGINEER.
Work includes furnishing all equipment, labor, and incidentals necessary to complete the
work as specified.
Bid Items No. 54 and 80
FURNISH AND PLACE 48 INCH BOULDER
A. Measurement is per Tons (tons)of boulder.
B. Work covers furnishing and installing 48-inch class boulder for construction of geomorphic
structures and at Fisherman's Park as shown in plans and as directed by ENGINEER. See
Technical Specifications for a gradation of"48-inch boulder"and for placement
requirements. Work includes furnishing all materials, equipment, labor, and incidentals
necessary to complete the work as specified.
Bid Item No. 56
BACKFILL OF GEOMORPHIC STRUCTURES AND RESTORED BANK GRADING
WITH NATIVE ALLUVIUM
A. Measurement is per Cubic Yards (CY) of alluvium.
B. Work covers placing and grading alluvium to the extents and elevations shown on the plans
and as directed by the ENGINEER. Work includes all labor, equipment, and materials
required to complete the work. Work includes, but is not limited to: BMP's, stockpiling,
handling, work area isolation(as required), installation, compaction and adjustments.
Bid Item No. 60
TRANSPLANT WILLOWS AND SMALL COTTONWOODS
A. Measurement is per square yard (SY)of installed bank surface.
B. Work covers uprooting existing willows and small cottonwoods and replanting in designated
areas as shown on the plans and as marked by the ENGINEER in the field. Work includes,
but is not limited to: BMP's; gathering stakes; special guarantees, and any and all incidentals
such as re-mobilization associated with seasonal constraints. Work also covers furnishing all
equipment, labor, and incidentals necessary to complete the work as specified.
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Bid Item No. 61
PLANT NATIVE E.C. GRASS WITH MULCH/TACKIFIER
A. Measurement is per Acre(AC) as measured in place.
B. Work covers installing mulch/tackifier and planting grasses. Work also covers furnishing
all equipment, labor, and incidentals necessary to complete the work as specified.
Bid Items No. 62 and 75
FURNISH AND PLANT NATIVE RIPARIAN SHRUBS
A. Measurement is per Each(EA).
B. Work covers furnishing and installing riparian shrubs per plans and directed by ENGINEER
in the field. Work includes furnishing all equipment, labor, and incidentals necessary to
complete the work as specified.
Bid Item No. 63 and 74
HARVEST AND PLANT WILLOW STAKES
A. Measurement is per Each(EA).
B. Work covers harvesting and installing willow stakes per plans and directed by ENGINEER
in the field. Work includes furnishing all equipment, labor, and incidentals necessary to
complete the work as specified.
Bid Item No. 64
RE-USE AND PLACE BOULDER GRADE CONTROL STRUCTURE—BYPASS
ALIGNMENT
A. Measurement is per Tons (TONS)of boulder
B. Work covers installing boulder structures per the plans and under the direction of the
ENGINEER. Boulders shall be re-used from the temporary bypass pipe outlet basin and
adjacent bank protection. Work includes, but is not limited to: BMP's;purchase and delivery
of all materials; excavating; backfilling; surveying; protecting filter fabric with alluvium; and
any and all incidentals such as bedding, geotechnical tests(per specifications), de-watering
and stockpiling of excess material removed from the channel. Work also includes furnishing
all equipment, labor, and incidentals necessary to complete the work as specified.
Bid Item No. 67
FURNISH, PLACE AND COMPACT CRUSHER FINES
A. Measurement is per Cubic Yards(CY) of crusher fines, installed and compacted.
B. Work covers furnishing and installing crusher fines as part of the emergency access pathway
design as shown in plans and as directed by ENGINEER. Work also includes furnishing all
equipment, labor, and incidentals necessary to complete the work as specified.
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Bid Item No. 68
FURNISH, PLACE AND COMPACT CDOT CLASS 6 AGGREGATE BASE
C. Measurement is per Cubic Yards (CY) of CDOT Class 6 Aggregate Base, installed and
compacted.
D. Work covers furnishing and installing CDOT Class 6 Aggregate Base as part of the
emergency access pathway design as shown in plans and as directed by ENGINEER. Work
also includes furnishing all equipment, labor, and incidentals necessary to complete the work
as specified.
Bid Item No. 69
FURNISH, PLACE AND COMPACT CDOT CLASS 2 AGGREGATE BASE
E. Measurement is per Cubic Yards (CY) of CDOT Class 2 Aggregate Base, installed and
compacted.
F. Work covers furnishing and installing CDOT Class 2 Aggregate Base as part of the
emergency access pathway design as shown in plans and as directed by ENGINEER. Work
also includes furnishing all equipment, labor, and incidentals necessary to complete the work
as specified.
Bid Item No. 70
BOULDER RETAINING STRUCTURE, FURNISHED AND PLACED
A. Measurement is per Tons (TONS)of boulder placed.
B. Work covers furnishing and placing boulder to construct retaining structures for the
emergency access pathway as shown on plans and directed by ENGINEER in the field.
Includes protect in place all utilities. Includes installation of boulders to the extents and
elevations shown on the plans and as directed by the ENGINEER. Work includes all labor,
equipment, and materials required to complete the work. Work also includes, but is not
limited to: BMP's, stockpiling, handling, work area isolation(as required), installation,
compaction and adjustments.
Bid Item No. 71
ALLUVIAL BACKFILL
A. Measurement is per Cubic Yards (CY) of alluvium.
B. Work covers installing alluvium in the emergency access pathway above boulder or existing
grade/excavation to the extents and elevations show on the plans and as directed by the
ENGINEER. Work includes all labor, equipment, and materials required to complete the
work. Work includes, but is not limited to: BMP's, stockpiling, handling, work area isolation
(as required), installation, compaction and adjustments.
Bid Items No. 73
EROSION CONTROL BLANKET
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A. Measurement is per square yard (SY)of installed erosion control blanket surface. Embedded
lengths of erosion control fabrics, vertical faces, and overlapped fabric shall not be included
in the quantities.
B. Work covers installing erosion control blankets. Work includes, but is not limited to: BMP's;
providing all necessary good quality materials; labor; excavation; installation; and any and all
incidentals such as key downs at edges and stakes; differing fabrics and installations for
appropriate application.
Bid Items No. 76
FURNISH AND PLANT WEST RIVER BIRCH TREES
A. Measurement is per Each(EA).
B. Work covers furnishing and planting west river birch trees per plans. Work includes
furnishing all equipment, labor, and incidentals necessary to complete the work as specified.
Bid Item No. 81
Resurface and Improve Fisherman's Park Boat Ramp
A. Measurement is an Allowance (ALLOW) of$4,000.
B. CONTRACTOR will produce a design-build plan for making improvements to the
Fisherman's Park boat ramp and submit for ENGINEER's approval. Total cost of these
improvements shall not exceed the authorized Allowance. Work includes furnishing all
equipment, labor, and incidentals necessary to complete the work as agreed upon by the
CONTRACTOR and ENGINEER.
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SECTION 2 GENERAL CONSTRUCTION METHODS
2.01 PROJECT LIMITS
All construction activity shall be confined to the Project Limits as defined on the Plans. These
are properties owned or leased by the Pitkin County and may include utility easements and road
Right of Ways.
2.02 PERMITS
The CONTRACTOR shall comply with all conditions set forth in all permits required for this
project. Required permits include but are not limited to:
U.S. Army Corps of Engineers Individual Permit number SPK-2010-00639 (pending extension
to February 28, 2018)
Section 401 Water Quality Certification No. 4265
2.03 SITE INTEGRITY
The CONTRACTOR is required to document the condition of the structures, utilities, roadway,
riprap, sidewalks, construction access areas, mature vegetation and the general area with video
recordings, submitted to ENGINEER prior to any construction phase and after each phase of
construction is completed. The video recording shall document the surface integrity of the
structures with clear and recognizable reference features or established and repeatable reference
markers in the field of view. The CONTRACTOR is responsible for rehabilitating, repairing or
replacing, to better than pre-construction conditions, any damage to the structures and vegetation
directly or indirectly related to construction activities.
2.04 UTILITIES
CONTRACTOR shall field-locate and mark all utilities within or adjacent to the Project. Any
utility locations marked on plans are approximate and actual field location of any utility is
wholly the responsibility of the CONTRACTOR. CONTRACTOR shall protect in place all
utilities.
2.05 TEMPORARY FACILITIES
CONTRACTOR shall provide all temporary facilities required for performing the work.
Temporary construction facilities and utility connections are solely the CONTRACTOR's
responsibility based on his selected method of operation and schedule. CONTRACTOR is
responsible for providing a clean and safe environment for all workers on the job site.
CONTRACTOR is responsible for providing sanitary facilities. CONTRACTOR shall follow
Occupational Safety and Health Administration (OSHA) regulations. CONTRACTOR is
responsible for providing all electrical, water and utility needs. CONTRACTOR shall keep the
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Project Limits in a neat and orderly manner. CONTRACTOR is responsible for removing
temporary facilities and controls after completion of all Work.
2.05.A. Staging Areas. Staging Areas are defined on the Plans. All construction staging,
stockpiling of materials, equipment storage, and other, shall take place in designated
areas with adequate barriers to protect the public from entry. If required, CONTRACTOR
shall coordinate with private property owners for staging and access. Staging areas shall
have a designated office or contact information posted for public inquires. Staging areas
shall provide employees all necessary facilities, legal postings, and safety protocol. The
CONTRACTOR is responsible for maintaining clean and organized staging areas.
2.05.B. Dewatering Areas. Construction activities are anticipated to produce clean fill
materials, as well as other waste materials. All excess materials produced by construction
activities shall be properly disposed. Dewatering areas shall have adequate BMPs in
place to stockpile material prior to disposal. Dewatering areas may also be configured to
include a Washout Area for concrete pours. Pours shall not be conducted during or
before an anticipated storm event. All excess concrete and concrete washout slurries from
the concrete mixer trucks and chutes shall be discharged off site or temporarily into a
washout area and hauled off-site for disposal. No cement laden waters shall enter
flowing waters.
2.05.C. Oiling Areas. Any and all fueling and oiling of equipment shall be in designated
upland locations, with adequate BMP's to contain any potential spill. All major
equipment/vehicle maintenance shall be performed off-site. Fuel tank may be kept on-site
in the staging area with drip pans underneath the fueling area. All equipment fluids
generated from maintenance activities shall be disposed of into designated drums stored
on spill pallets in accordance with hazardous waste management practices. Drip pans
shall be placed under all equipment receiving minor or routine maintenance.
A Spill Cleanup Plan is wholly the responsibility of the CONTRACTOR and shall be
posted and available at all times on site for all work areas prior to any construction
activities and shall include coordination with local emergency response agencies. A
release of any chemical, oil, petroleum product, sewage, etc., which may enter waters of
the State of Colorado (which include surface water, ground water and dry gullies or storm
sewers leading to surface water) shall be reported to the Colorado Department of Public
Health and Environment immediately(25-8-601 CRS) and form:
https://www.colorado.gov/pacific/sites/default/files/WO Ops-
2009 Spill ReportingBrochure.pdf
and/or Toll-Free 24-hour Environmental Emergency Spill Reporting Line 1-877-518-
5608 may be used. Written notification to the Department shall follow within five (5)
days(5 CCR 1002-61, Section 61.8(5)(d)). Releases of petroleum products and certain
hazardous substances listed under the Federal Clean Water Act(40 CFR Part 116)must
be reported to the National Response Center as well as to Colorado Department of Public
Health and Environment as required under the Clean Water Act and the Oil Pollution
Act. Furthermore, contact must be made immediately, reporting any spill incident, with
the Pitkin County Department of Public Health, the Town of Basalt, the Colorado Park
and Wildlife, the OWNER and ENGINEER.
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2.05.D. Hauling Routes. The import and export of materials from the project limits shall
occur at designated locations on defined haul routes. Haul routes shall be graded and
maintained to drain and not pool water. Haul routes shall have wheel washing locations
and tracking pads at the junction of paved surfaces. Haul routes shall also be flagged by
the CONTRACTOR within the Project Limits and random access of equipment shall be
prevented. Adequate dust suppression, such as watering of haul routes, shall be
maintained at all times. Paved travel surfaces shall be maintained as clean surfaces and
adequate equipment shall be onsite to maintain clean paved travel surfaces.
2.05.E. Channel Access Areas. CONTRACTOR shall be responsible for designating and
maintaining channel access sites for equipment and workers within Project Limits
defined on plans and for rehabilitating access sites once construction is complete.
Random or multiple channel access areas shall not be used. Gravel berms shall be
installed at the top of the access ramp and other areas to eliminate sheet flow or drainage
onto the exposed or disturbed Riverbanks. A silt barrier shall be erected along the toe of
any and all out-of-channel open cuts to eliminate the migration of material outside of the
limits of work. Straw Bales shall be used at the toe of the ramp when the access is not in
use to prevent the migration of material into the Roaring Fork River. See access ramp
detail in plans.
2.06 CONSTRUCTION STAKING
The OWNER shall provide adequate horizontal and vertical control points for the
CONTRACTOR to establish the lines and grades shown on the plans. Grade elevations and
additional construction staking shall be wholly the responsibility of the CONTRACTOR.
Established control points shall be provided with special colored flagging and it shall be the
responsibility of the CONTRACTOR to protect those control points. In the event they are lost,
due to any cause,the CONTRACTOR shall re-establish adequate and permanent control
markers.
The OWNER will provide a proposed compatible digital surface model and river alignment to
the Contractor. The contractor shall have the means to load the alignment and surface into afield
survey controller, for use in layout, checking, and as-builts of any location in the project area.
CONTRACTOR shall be available for construction staking inspection in the field at OWNER'S
request.
Established control points shall be provided with special colored flagging and it shall be the
responsibility of the CONTRACTOR to protect those control points. In the event they are lost,
due to any cause, the CONTRACTOR shall re-establish adequate and permanent control
markers.
2.07 SITE GRADING
CONTRACTOR shall establish and identify required lines, levels, contours and datum. Grade
Site to match all lines, elevations and grades shown on the Project Drawings.
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2.08 ACCEPTABLE AS BUILT ELEVATION VARIATIONS (feet)
Average Elevations across each Cross-Section shall be exact and conform to Pitkin County
Floodplain regulations and any State of Colorado applicable regulations. With natural building
materials variances are expected and shall be allowed for average locations of individual
particles. The following As-Built Variances are allowed.
Table 2.08. Acceptable As-Built Variances for Average Locations of Individual Particles
(feet)
Description Variance Variance
Elevation (feet) Horizontal (feet)
Top of Pre-Cast Structure +0.05;-0.05 +/-0.5 bank alignment
Bottom of Pre-Cast Structure +/-0.5 channel alignment
Top of Terracing +0.5;-0.5 +/-1.0 bank alignment
Top of Stone Toe Protection +0.5;-0.5 +/-2.0 bank alignment
(STP)
Top of Wing Structures +0.5;-0.5 +/-2.0 bank alignment
Cross Section Average +0.0;-0.0 +/-0.0 bank alignment
Restored Bank Grading +0.1, -0.1 +/- 1.0 bank alignment
Channel Cobble/Boulders +0.5, -0.5 +/- 5.0 bank alignment
2.09 UTILIZING IN-CHANNEL MATERIALS
Clean Native Alluvium that is excavated for structure placement and is to be backfilled in the
channel may be utilized in channel as temporary cofferdams or other water control practices.
Exposed Alluvium resulting in noticeable downstream turbidity shall be isolated from the flow
of the channel.
Excavated clean native alluvium, boulders and clean bedrock may be allowed to be backfilled in
the channel around structures within the limits of excavation as defined in plans. All other
excavated material including fines and bank material shall not be placed in any flow path, shall
be properly disposed of in upland area and shall have appropriate erosion control measures in
place. All in-stream structures shall be constructed in sections sized to minimize open
excavation area. Each day of work shall be a completed work and no excavations of the bank or
streambed shall be left open.
2.10 TEMPORARY DIVERSION STRUCTURES
Control of the River stage and associated erosion during construction is wholly the responsibility
of the CONTRACTOR. Setting boulders and grading of clean native alluvium may be
performed in the wet channel. However, any and all wet cement work shall be isolated from the
flow of the River. For In-Stream Boulder Placement, it is by CONTRACTOR's discretion
whether to have a diversion and of what type. For In-Stream Construction of Pre-Cast Structures
a temporary Coffer Dam structure shall be required. One example for control of River stage
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during construction has been included in the Plans and consists of sheet pile coffers dams and a
temporary bypass pipe system with a conveyance capacity of approximately 250 cfs.
The example isolation/diversion plan shown in the Plans is provided for reference only. The
Diversion Plan presented herein is only one example of controlling stage during construction.
Other diversion methods may be suitable and the CONTRACTOR is wholly responsible for the
diversion methods implemented. In addition to controlling the stage of the river, seepage and
ground water will likely require additional control methods such as pumping, sand bagging,
impermeable membranes and jersey barriers. The CONTRACTOR shall be wholly responsible
for the selection of suitable method(s), and for design, installation, and operation of the diversion
and care of the river required during the performance of the work under these specifications.
The CONTRACTOR is required to design and install adequate diversion and care of water
facilities in a timely fashion in accordance with his/her schedule of construction and the
requirements of these specifications. Areas disturbed for diversion practices shall be restored
and stabilized to better than existing conditions. Failure of the CONTRACTOR to become
adequately familiar with and address the existing structures and river conditions which impact
the work may result in unnecessary construction delays and associated increased costs for which
the CONTRACTOR shall be solely responsible.
The CONTRACTOR shall provide a minimum of 14 days' notice to the ENGINEER and CPW
staff prior to implementing a diversion plan and dewatering any portion of the existing river bed.
CPW staff shall be coordinated with for the removal of any fish within the planned
isolated/dewatered area. The CONTRACTOR shall request and receive written notice from CPW
staff that authorizes diversion and dewatering activities to commence prior to starting these
activities.
2.11 TRAFFIC CONTROL PLAN
CONTRACTOR shall submit a Traffic Control Plan, to include the roads, parking areas, bike
path and river, to be approved by the Town of Basalt. The Traffic Control Plan shall address
vehicular, bicycle, pedestrian and river users traffic. No construction activities shall impede
public traffic patterns prior to written approval from the Town of Basalt. The Traffic Control
Plan shall be submitted to the Town of Basalt for approval with 10 days' notice for review. If
CONTRACTOR shows that it is necessary to close any Paths or re-route traffic, the Town of
Basalt shall work with CONTRACTOR to approve a reasonable alternative route.
2.12 IN-CHANNEL CONSTRUCTION TIMING
The CONTRACTOR shall time in-channel and open bank excavation work to be completed
prior to February 15th, 2017. Completion shall include removal of all equipment, care of water
and erosion control BMP's below ordinary water and the flow of the river returned to the main
channel. The CONTRACTOR shall coordinate with the USACE and CPW on time extensions
and install other necessary BMPs required to minimize turbidity transported downstream. No
work shall be partially completed that would be subjected to high flow, approximately greater
than 350 cfs. The CONTRACTOR shall be responsible to plan accordingly and monitored the
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weather forecast to anticipate for storm events. Table 2.12 below provides the approximate
existing Water Surface Elevations at the Project reach for anticipated flows.
Water Surface Elevations (WSEL) are based on limited survey and one-dimensional
hydraulic modeling. Actual WSELs in the field may vary from those listed herein.
Approximate WSELs are provided herein solely for the information of the
CONTRACTOR.
Water Surface Elevations may be affected to an unknown degree with temporary flow
obstructions of equipment, coffers, temporary alluvium placement or other construction
activities. The CONTRACTOR is wholly responsible for monitoring and controlling
WSELs during construction and any associated erosion, flooding, structure integrity or
environmental damage.
Base flows are typically between 100-250 cfs during the construction period; however
storm flow events exceeding the 250 cfs maximum may occur. The CONTRACTOR is
responsible for monitoring storm events, snow accumulation, and temperature to
anticipate for high flow events.
Section 7 provides statistical analysis of flows and estimated water surface elevations
during construction.
Table 2.12—Exiting Water Surface Elevations
D/S WSE - U/S WSE—
Flowrate U/S WSE -Existing Existing Engineer's Example
Conditions Conditions Care of Water Plan
Bankfull(1800 *
cfs) 6615.78 6606.06
20 cfs 6613.46 6603.22 6612.91
50 cfs 6613.58 6603.41 6613.63
100 cfs 6613.74 6603.62 6614.49
250 cfs 6614.07 6604.06 6616.63
350 cfs 6614.25 6604.3 6618.13*
500 cfs 6614.49 6604.58
1000 cfs 6615.07 6605.27
2500 cfs 6616.32 6606.59
* Coffer Dam (Crest EL=6618.0) Over Tops at 337 cfs
Recommended Resources:
USGS, Grand Junction Field Office (970) 245-5257.
USGS Gauge #09081000—Roaring Fork River near Emma, CO
USGS Gauge#09080400—Frying Pan River Near Ruedi, CO.
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2.13 TIMING OF PLANTING.
CONTRACTOR shall seed and plant in the early spring to take advantage of the cool weather
and moist conditions. The CONTRACTOR may need to provide temporary water for adequate
establishment of all seeding and container plantings. The CONTRACTOR may need to use a
water truck to periodically water and establish plants for site restoration.
2.14 TURBIDITY MONITORING
During periods of in-river construction turbidity of the water 300 yards downstream of the
Project Limits shall not be visually greater than the turbidity of the water upstream of the Project
Limits. BMP's to limit turbidity increases shall include: intermittent excavation; construction
during periods of elevated background turbidity; Care of Water, and structural BMP's such as
turbidity curtains.
CONTRACTOR shall continually visually monitor and daily record turbidity conditions. If
turbidity increases, above those conditions upstream of the Project Limits, cannot be avoided at a
point 300 yards downstream of the Project Limits, the CONTRACTORS shall supply a turbidity
monitoring device and recorder suitable to record half hour increments for allowable increases,
above background, of less than 20 nephelometric turbidity units(NTU). CONTRACTOR shall
take all precautions and implement any and all necessary BMP's to maintain turbidity increases
less than 20 NTU. If measurements are lower than the 20 NTU maximum criteria for 2
consecutive days, measurements increments may increase to 4 hours on the third day and visual
observations may be reinstated thereafter. When the nature of the instream activity changes and
turbidity appears to change, then the original ''V2 hour increments must be reinstituted.
ENGINEER or OWNER may stop construction during ineffective BMP's, visual increases of
downstream turbid conditions, or exceedance of 20 NTU increases in turbidity above the
conditions upstream of the Project Limits. CONTRACTOR is wholly responsible for time
delays associated with inadequate BMP's, inadequate Care of Water, or stopped work.
CONTRACTOR is wholly responsible for environmental damage associated with uncontrolled
sedimentation outside of the Project Limits.
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SECTION 3 BEST MANAGEMENT PRACTICES
3.00 GENERAL
The Work covered by this section includes the furnishing of all labor, materials, equipment and
incidentals for installation and maintenance of all on shore and in-channel BMPs. Within the
Project Limits all disturbed surfaces shall utilize best management practices such as Turbidity
Curtains, Silt Fences, Construction Sequencing, Care of Water, etc.; to minimize potential
environmental damage, turbid conditions, locations of ponding, sediment loading in any flow
path, dust, noise, light, etc. Adequate numbers, locations and properly functioning BMPs and
erosion control are wholly the responsibility of the CONTRACTOR. The CONTRACTOR is
responsible for maintaining all BMPs during construction activities, and for the removal post
construction activities and/or adequate stabilization periods. The ENGINEER may stop work in
any area due to improperly installed, inadequate, or non-functioning BMP's.
3.01 CONSTRUCTION SEQUENCING
Prior to starting construction, the CONTRACTOR shall notify the ENGINEER and the OWNER
of the date the CONTRACTOR intends to start construction with a written notice delivered a
minimum 7 days in advance.
The sequence of the critical construction processes are defined by the ENGINEER and
CONTRACTOR shall follow the sequence.
I. INITIAL SITE SETUP
1. Notify Pitkin County and ENGINEER of start date as required.
2. Notify Colorado Parks & Wildlife (CPW), Town of Basalt and Adjacent Property
Owners of start date and establish emergency contact information.
3. Document with photographs and video the project vicinity, structures and vegetation and
submit to ENGINEER in electronic format.
4. Obtain Traffic Control Plan approvals from Town of Basalt, including Two Rivers Road,
the river and bike path.
5. Submit Diversion Plan and methods to prevent cement entering flowing waters to
ENGINEER for review and comment.
6. Establish and post construction site safety protocol.
7. Place Barriers, Post Signs, Install Safety Fencing and Isolate Project Site.
8. Locate, in field, all Utilities.
9. Protect in structures, roads, utilities, boulders, trees and other.
10. Locate and flag Project Limits.
11. Locate construction staging and stockpile areas.
12. Install oil booms across wet channel downstream of work area; replace used oil booms
per manufacturer's specifications.
13. Locate area for storage of spare oil booms and designate oiling and petroleum handling
areas with appropriate and adequate BMPs outside of the riparian zone.
14. Establish and post protocol for potential oil spill cleanup and emergency response.
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II. STAGING
1. Install temporary portable toilet
2. Implement approved Traffic Control Plan.
3. Install BMPs
i. Control erosion and concentrated runoff
ii. Maintain and facilitate any and all existing Drainage Channels
iii. Identify and install any other BMPs as necessary
4. Protect in Place Mature Trees and Riparian Areas.
5. Trim brush on access route and within disturbance limit on south side of the river.
6. Locate and Protect in Place Survey Control.
7. Grade Access and Staging Areas.
8. Maintain, add and repair BMP structures as necessary throughout project.
9. Pre-order materials and Pre-cast Concrete Wave Block Structures and seek approvals
from ENGINEER as necessary.
III. IN-CHANNEL STRUCTURE CONSTRUCTION
All construction activities shall follow the project's U.S. Army Corps of Engineers Permit ref#
(SPK-2010-00639). In-stream work shall be performed during low water periods. Prior to
construction activities, Best Management Practices (BMPs) shall be in place in order to minimize
turbidity and sedimentation, as well as prevent pollution and the potential release of
contaminants from equipment. Construction activities shall be sequenced and sized to minimize
temporary impacts to flowing water.
1. Stake out grades, lines, offsets and spot elevations as necessary.
2. Install all erosion and sediment control BMP's as per plans and specs.
3. Install temporary bypass system and coffer dam/work area isolation BMPs.
4. Bypass river flow around isolation area.
5. Stage pump or gravity flow system with sediment filter and adequate hose length to
remove contaminants before return flow.
6. Remove all non-native channel debris including slag and metal.
7. Leave pump or gravity flow system and filter staged to filter all return waters.
8. Prepare a level pad at the design elevation of the precast concrete wave block footer as
per plans.
9. Place Pre-Cast Base with Drain Plug not installed. Once base is set, place Drain Plug in
base.
10. Place all rings to design elevation minus the lid height to achieve the design elevation
once the lid is placed. (It is IMPORTANT to measure the lip depth of the lid as well as
the lip height of the pre cast box and compensate for actual elevation of placed lid if there
are discrepancies).
11. Place the Pre-cast Structure lid.
12. Isolate any flowing water from pre cast lids and ports. Pump Pre-cast structure dry.
13. Backfill and vibrate grout in pre-cast structures per plans and specs. There shall be zero
discharge of concrete-laden waters into flowing water. Admixtures for Freezing
Temperatures and Anti-Washout Admixtures may be used to accelerate drying times.
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14. Protect fill ports from flowing water for 3 days or as per admixture manufacturer's
specifications.
15. If installation of pre-cast structures requires phasing to minimize the obstruction on the
flowing river, repeat steps 7-15.
16. Complete construction of other In-Channel Boulder Structures, including upstream
geomorphic structures (bank attached rock vanes)that are within the isolated area.
17. Complete construction of all Bank Terracing. All bank disturbances shall be contained
within a Permeable Turbidity Curtain at a minimum.
18. Backfill around structures and in-stream boulders to specified elevations.
19. Construct upstream geomorphic structures upstream of the isolated area. All bank
disturbances shall be contained within a Permeable Turbidity Curtain.
20. Excavate channel upstream of isolated area and use excavated alluvium to backfill and
grade bank around geomorphic structures.
21. Remove all excess materials from channel.
22. Remove all remaining BMP's from channel.
23. Remove turbidity curtains and coffers.
24. Construct boulder grade control in bypass alignment as shown on plans.
25. Remove and dispose of filters as required.
26. Restore temporary diversion channels.
27. Re-vegetate all disturbed cobble areas per planting plans.
28. Re-vegetate all disturbed soils with native erosion control grasses. Install jute matting and
tackifier, if required.
29. Identify and install any other BMP's as necessary to control erosion from disturbed areas,
constructed structures and potential storm water runoff.
IV. FINAL SITE RESTORATION
1. Plant remaining stream-bank riparian vegetation areas
2. Dispose of any excess materials at a qualified disposal facility
3. Restore Temporary Equipment Access Routes to original grade
4. Remove all materials from staging areas
5. Re-grade or repair staging areas to pre-construction condition
6. Identify and install BMPs down-gradient from all disturbed areas until establishment of
vegetation(approx. 1 yr)
7. Remove all waste materials
8. Remove utilities protection
9. Remove Temporary Signage, Barriers and Safety Fencing
10. Repair incidental damage to any adjacent property, structures or vegetation.
11. Establish erosion control grasses in all disturbed areas above the Ordinary High Water
Line.
12. Remove non-biodegradable BMPs after the establishment of vegetation (approximately 1
year).
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3.02 CHANNEL ACCESS
Stone Berms shall be installed at the top of the access ramp and other areas to eliminate sheet
flow or drainage onto the exposed or disturbed banks. A silt barrier shall be erected along the
toe of any and all out-of-channel open cuts to eliminate the migration of material outside of the
limits of work. Straw Bales shall be used at the toe of the ramp when the access is not in use to
prevent the migration of material into the body of water. (See Details in Plan Set)
3.03 EQUIPMENT OPERATING IN WET CHANNELS
Equipment shall be allowed to operate in the wet channels. Equipment operating in or adjacent
to any wet channels shall be free of any fluid leaks and in excellent operating condition.
Biodegradable hydraulic fluids shall be utilized for any equipment operating in the flowing river
channel. CONTRACTOR shall submit a list of equipment operating with certified bio
degradable hydraulic fluids to the ENGINEER prior to the use of the equipment in the flowing
channel. No equipment shall be left unattended at any time in any wet channel or below the
Ordinary High Water Line. Any and all fueling and oiling of equipment shall be in a designated
upland location, with adequate BMPs to contain any potential spill.
All equipment shall be cleaned prior delivery to the project area to minimize potential for
spreading of invasive species. Equipment shall be power-sprayed and free of weeds, soil and
untreated water. If any equipment being used for the Project has been previously working in
another stream, river, lake, pond or wetland, one of the following disinfection practices is
necessary prior to construction to prevent the spread of whirling disease, New Zealand mud
snails, zebra mussels, didymosphenia, and other aquatic hitchhikers. These practices are also
necessary after project completion, prior to the equipment being used in another stream, river,
lake, pond, or wetland, for the same purpose:
Offsite, remove all mud and debris from equipment (tracks, turrets, buckets, drags, teeth,
hand tools, boots, etc.) and spray/soak equipment in a 1:15 solution of Sparquat
institutional cleaner and water. Keep equipment moist for at least 10 minutes; or
Offsite, remove all mud and debris from equipment (tracks, turrets, buckets, drags, teeth,
hand tools, boots, etc.) and spray/soak equipment with water greater than 140 degrees
Fahrenheit for at least 10 minutes.
The excavators and backhoes may periodically need to be cleaned on site to remove excess local
sediments stuck to the track or hoes. Sediments that are removed with a shovel shall be placed in
designated clean fill material storage areas. Sediments removed with clean water shall be
washed into the dewatering area. All dewatering areas shall have erosion control logs staked at
flow lines before discharge into any flow path.
3.04 OIL BOOM
An adequate number of oil boom SPC 5510 manufactured by SPC (https://www.bradyid.com/en-
us/spc5510/prod-2023473.html) or equivalent shall be placed in a designated location onsite,
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visible and unobstructed at all times. Any spills shall be contained and cleaned by the
CONTRACTOR. Oil booms shall be installed across the channel at the downstream end of the
Project Limits at all times equipment is working in or crossing the flowing. All Booms shall be
replaced as needed, approximately weekly with new Oil Booms.
3.05 PERMEABLE TURBIDITY CURTIAN
All exposed bank excavations and disturbances shall be separated from the main flow of the river
by a Permeable Turbidity Curtain. The turbidity curtain shall have a non-woven 8 oz. non-
woven filter fabric for at least 50%of the curtain area between the float and the ballast.
3.06 STRAW BALES AND EROSION LOGS
Straw Bales shall be certified "Weed-Free" and not hay bales. Bales shall be secured with wood
or metal stakes driven 2 feet into ground. 4 inches of 3 inch minus washed gravel shall be placed
on the up-gradient toe of the bales. Bales can be removed when vegetation is established. (See
Details in Plan Set)
Erosion logs shall be curled aspen wood excelsior with a consistent width of fibers evenly
distributed throughout the log. The casing shall be seamless, photodegradable tube netting and
shall have minimum staked dimensions of 1.25"x 1.25" x 24" and have a minimum weight of
2.5 pounds/foot. The curled aspen wood excelsior shall be fungus free, resin free, and free of
growth or germination inhibiting substances. Erosion logs shall be embedded 2 inches into the
soil. Stakes shall be embedded to a minimum depth of 12 inches. At the discretion of the
Engineer, a shallower depth may be permitted if rock is encountered. The Contractor shall
maintain the erosion logs during construction to prevent sediment from passing over or under the
logs. See CDOT Standard Plans M-208-1 (revised 3-29-16) for more details.
3.07 SILT FENCE
Silt Fences shall be placed to contain construction activities on land. Silt Fence shall be
constructed with 4oz. Non-Woven Filter Fabric (Mirafi 140n or equivalent) with a 6 inch by 6
inch anchor trench up-grade (i.e. uphill) of the fence line and fence posts in 6 ft centers. The
anchor trench shall be backfilled to existing grade with native material compacted to 95% of
maximum as determined by the Standard Proctor Method (ASTM D-698-66T or AASHTO T
99). (See Details in Plan Set)
3.08 FILTERING OF PUMPTED WATER
Any pumped water being returned to the main flow of the river or other drainage shall first be
processed through a Filter or settled in a dewatering area. Turbid waters that are clean of
containments or concrete residue shall be filtered to prevent excessive turbidity. Waters with
contaminants or concrete residue shall be filtered clean before returning to the natural flow.
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•
3.09 REMOVAL OF BMPs
All BMPs below the Ordinary High Water Line are to be removed prior to the completion of the
work. All BMPs above the Ordinary High Water Line are to remain in place until the
establishment of vegetation, approximately one year. Any non- biodegradable BMPs shall be
removed after the establishment of vegetation covers at least 70%, approximately one year. All
non-biodegradable BMPs are the property of the CONTRACTOR. The locations of the BMP
installations shall be graded, seeded and restored to preconstruction conditions after removal.
3.10 RIPARIAN PROTECTION
Any and all riparian areas and riparian vegetation outside of the limits of excavation shall be
protected in place. No construction supplies, fuels nor oils shall be stored in riparian areas, no
vehicles nor heavy equipment shall be allowed into riparian areas other than the designated
channel access sites. No discharge of any materials shall be allowed into any riparian areas.
Riparian areas shall be traversed only by foot and leak free hoses may cross riparian vegetation.
Any incidentally disturbed riparian areas shall be restored to better than pre-construction
conditions.
3.11 MATURE TREE PROTECTION
The preservation of existing mature trees is an important component of the work and a measure
of the successful completion thereof. Healthy root mass at the toe of the riverbanks is essential
to the stability of the River channel. The healthy mature native trees that are adjacent to
excavating activities shall be Protected-In-Place (PIP). The work shall include the preservation
from injury or defacement of all vegetation that is NOT designated for removal by the
ENGINEER in the field. ENGINEER shall mark all trees and large shrubs approved for removal
prior to excavation work. Areas of tree removal shall be determined and marked in collaboration
between the CONTRACTOR and the ENGINEER. The CONTRACTOR must coordinate with
the ENGINEER prior to the removal of any tree with a diameter greater than 4-inches.
a) CONTRACTOR guarantees that care, caution and best management techniques shall
be implemented to maximize the survivability of native mature trees not designated for
removal.
b) All PIP trees shall have 100% success rate, showing vigor and general health, for one
year after PIP measures are conducted. PIP mature trees that do not survive due to
construction related reasons must be replaced at the expense of the CONTRACTOR.
c) Post construction monitoring may recommend additional pruning, irrigation, or
fertilizer to restore health to a damaged tree. The CONTRACTOR is responsible for all
measures to restore the health of trees for one year after construction disturbances around
protect-in-palace trees.
d) If negligence results in potential mortality of trees, as determined by the
ENGINEER, the CONTRACTOR shall replace all damaged trees with new native trees
to reclaim an equivalent canopy cover at CONTRACTOR's sole expense.
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Special care shall be applied when working under driplines or near the toe of the riverbank. The
majority of critical roots are expected to run parallel to the River. The CONTRACTOR shall take
great care when any earth disturbing activities beneath the drip line of trees are conducted. PIP
mature trees shall follow the below guidelines:
3.11.A. Hand Excavations under the drip line. Under the drip line, or at a minimum of
10 feet from the base of a PIP Tree, all necessary excavating activities shall be done by
hand to expose the roots.
a. Expose all roots greater than 1-inch and preserve.
b. If it is necessary for the removal of concrete litter, or for the installation of bank
and in-channel features, the roots may be cleanly cut, and shall not be ripped or
torn. CONTRACTOR to coordinate with ENGINEER prior to cutting roots.
3.13.B. Treatment of cut and exposed roots. Backfill all cut and exposed roots the same
day of root cutting, and water until backfilling is accomplished.
3.13.C. Root Care. Roots can be up to 2-3 times the diameter of the drip line.
The CONTRACTOR shall take as much care as possible to preserve roots.
a. All roots that are necessary to remove for excavation activities shall be cleanly
cut.
b. The CONTACTOR shall apply all root cuts with approved root stimulator.
3.13. D. Areas of fill near PIP trees
a. If necessary, any fill material shall be held away from PIP trees with a boulder
retaining wall with a discontinuous footing.
b. If fill is necessary adjacent to the PIP tree,then air vents shall be installed.
c. No soils shall be compacted under the drip line without ENGINEER approval.
3.12 ENVIRONMENTAL PROTECTION
The construction site shall be maintained to minimize dust, noise, erosion, and water ponding.
Any and all fuel operated equipment near or within drainage areas, riparian areas or open water
areas shall be leak-free and in excellent operational condition. Equipment operating in the
riparian zone shall also use biodegradable fluids, unless specifically exempted by the OWNER
representative. The CONTRACTOR is wholly responsible for any environmental damage
directly or indirectly related to storage of supplies and equipment, equipment operation, any fluid
spills or any other construction activities.
3.13 BARRIERS
The CONTRACTOR shall furnish, install and maintain suitable barriers, as required to prevent
public entry; and to protect the work, facilities, trees and wetland areas from any associated
construction activities. Remove temporary barriers at the completion of work.
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3.14 PROJECT SITE REHABILITATION
After all other construction activities are completed; all disturbed areas are to be rehabilitated to
pre-construction conditions. Clean the site of trash and debris and remove all construction
measures, equipment and supplies. Permanent riparian plantings and seeding shall be installed
per the planting plan immediately after the final design grades are achieved, but no later than 14
days after construction activities have permanently ceased at the disturbed area.
One year after installation the CONTRACTOR shall guarantee that containerized, live stakes and
B&B plants shall have a survival rate equal to the planting spacing show in the plans.
CONTRACTOR may elect to overplant to achieve this rate. Seed plantings shall have 70%
success rate.
3.15 SANITARY WASTE MANAGEMENT
A temporary portable toilet shall be stored in the staging area. The portable toilet shall be placed
away from flow and have collection pans placed underneath.
3.16 CULTURAL RESOURCES
The project area has been disturbed by bank construction, road alignments, multiple utilities,
pedestrian path construction and is within the main channel of the Roaring Fork River. No
cultural resources are anticipated to be impacted by the project. If potential cultural resources in
the project area are discovered during construction and cannot be avoided, CONTRACTOR shall
suspend construction activities in that area until the properties can be evaluated for listing in the
National Register of Historic Places in consultation with Colorado State Historical Preservation
Office. The CONTRACTOR shall notify the ENGINEER and OWNER immediately if potential
cultural resources are discovered during construction.
3.17 EMMA ROAD STAGING AND DISPOSAL AREA
The ENGINEER has acquired permission from the owner of Basalt Commercial Park, Lot J to
use this property for staging and disposal of approximately 250 cubic yards of excavated
material.
Excavated material must be sorted/screened to remove wood, debris and any rock/cobble/boulder
larger than 5 inches in diameter. Screened material should be placed to the limits and elevations
shown in the plans or directed by the ENGINEER in the field. Erosion and Sediment Control
measures and other BMP's shall be utilized as required in Sections 2 and 3 of the Technical
Specifications.
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SECTION 4 IN-CHANNEL AND BANK CONSTRUCTION
4.01 GENERAL
Care of Water (COW) practices, as part of BMP's, are required for all in-channel construction
activities. See Section 3 —Best Management Practices for more information.
4.02 CHANNEL CONSTRUCTION METHODS
-1.02.1 Acceptable As-Built Elevation Variations(feet)
With natural building materials variances are expected and shall be allowed for average
locations of individual particles. See Table 2.08 for allowable variances of in channel
boulders, alluvium and precast structures.
4.02.2 Channel Grading. Restoration of the channel includes in-stream grading within the
project boundary at two independent sites. This work will primarily include the
excavating, stockpiling, placement and grading of the native in-stream alluvial material.
Backfill shall consist of native alluvium(cobbles and gravels) from the project reach. The
CONTRACTOR shall coordinate with the ENGINEER and schedule the ENGINEER to
assist with field fitting channel features and establishing final channel grades.
4.03 CONSTRUCTION OF BOULDER STRUCTURES
4.03.A-In-channel Structures
All Boulder Structures constructed In-Channel or below the Ordinary High Water Line
(OHWL) shall be constructed with Footer Rocks and Keying Techniques (See Details in
Plan set). Construction of Boulder Structures shall include selection, rotation, placement
and adjustment of each individual rock to minimize void spaces and maximize
interlocking of boulders and smooth transition between boulders. The ENGINEER may
identify each imported boulder that may affect surface flow, and direct the placement of
surface flow boulders.
Boulder Structures shall be constructed by placing individual boulders in designed cross-
sections of the channel. Each cross-section has specific average elevations and
alignments for the placement of rock as shown on the Project Drawings. Each structure
shall include footer boulders extending at a minimum to the elevations shown on the
plans. If no footer elevations are shown for a particular cross section, then the boulder
shall be buried and minimum of 4 feet of depth below the bed elevation in the channel
cross-section or the elevation shown in the plans, whichever is deeper. Stacked boulders
shall have a minimum 0.5:1 horizontal to vertical slope with the footer offset in the
downstream direction when buried and footer offset in all directions when exposed.
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Each individual boulder shall be set with the "B" axis in the direction of flow when
exposed or the "A" or "B" axis when the boulder is interlocked between other boulders
(See Details in plan set). Minimum acceptable boulder size is 42-inches along the B-axis.
4.03.B -Bank Terrace Structures
Boulder terracing structures shall be constructed by placing individual boulders in
designed sections of the bank. Each boulder shall include selection, rotation, placement
and adjustment of each individual rock to minimize void spaces and maximize
interlocking of boulders. Each section has specific elevations and alignments for the
placement of rock as well as spot elevations as shown on the Project Drawings. Each
Surface Boulder shall include footer boulders placed at least to depth shown on Project
Drawings and at a minimum of 3 feet of depth below the existing grade and placed on
8oz Filter Fabric. Boulders placed at the toe of the slope shall be a minimum of 60
inches along the B-axis. All boulders shall have intimate contact with all adjacent
boulders; boulders may be leveled and voids filled with less than 6 inch lift of 6 inch
minus of well graded alluvium or gravel bedding. Filter fabric and geo-composite shall be
installed between boulders and native material per Section 4.04.
Existing boulders along the embankment may be reused for the boulder terrace
construction, provided they meet the requirements outlined in Section 4.03.D. Any
existing boulder material that does not meet Section 4.03.D requirements or is otherwise
deemed unacceptable by the ENGINEER for use in the project construction shall be
hauled offsite at the CONTRACTOR'S expense.
4.03.0—Boulder Geomorphic Structures
Boulder geomorphic structures shall be constructed by placing individual boulders in the
banks and along the channel bed as shown on the plans. Each boulder shall include
selection, rotation, placement and adjustment of each individual rock to minimize void
spaces and maximize interlocking of boulders. Each structure has specific dimensions,
elevations and alignments for the placement of rock as shown on the Project Drawings.
Footer boulders shall be placed at least to the elevation shown on Project Drawings and at
a minimum of 5 feet of depth below the existing thalweg elevation. Footer boulders shall
be a minimum of 48-inches along the B-axis. All boulders shall have intimate contact
with all adjacent boulders; boulders may be leveled and voids filled with less than 6 inch
lift of 6 inch minus of well graded alluvium or gravel bedding.
4.03.D -Imported Boulders
Imported Boulders may be quarried or excavated and generally smooth in shape with the
largest rock faces being approximately flat. Boulders shall be of a consistent material for
the entire project and shall be a color that is aesthetically neutral with the native
landscape. Boulder gradations shall conform to Table 4.03D by number, and
measurement of the intermediate axis ("B"-Axis). The minor axis (shortest dimension or
"C"-Axis) shall not be less than indicated in Table 4.03.D. Boulders exposed in the grade
controls and keyed into the toe of each structure shall have a minimum intermediate axis
(B-Axis) of 60 inches.
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Table 4.03.D. B-Axis Boulder Gradations (inches)
Number of
Stones Indicator 36 inch 48 inch 60 inch 72 inch
< 10% Greater 48 60 72 84
> 75% Between 42&30 56&40 68&48 78&60
0% Less 24 30 42 54
Imported Boulders shall consist of hard, dense durable stone, resistant to weathering.
Surface stones shall have an aesthetic neutral color. Stone shall be suitable for incidental
human contact.
CONTRACTOR shall submit source information and samples to ENGINEER. The
ENGINEER shall approve Boulder material before use. Granitic and basaltic boulders
subjected to weathering such as glacial or alluvial flows will be preferred. Boulders may
be approved by the ENGINEER if, by visual inspection, the rock is determined to be
sound and durable. The ENGINEER may reject boulder material if, in the ENGINEER's
opinion, the material is marginal or unacceptable or has poor aesthetic value. At the
request of the ENGINEER, the CONTRACTOR shall furnish laboratory test results
indicating that the material meet the requirements including those below:
— Boulders shall have a minimum specific gravity of 2.65.
— Abrasion resistance by Los Angeles Machine; Test Method ASTM C535;
Specification Requirement: 15% loss, maximum.
— Soundness by use of Sodium/Magnesium Sulfate, Test Method ASTM
D5240-04 Standard Test Method for Testing Rock Slabs to Evaluate
Soundness of Riprap by Use of Sodium Sulfate or Magnesium Sulfate;
Specification Requirement: 5% loss, maximum.
Soundness by Freezing and Thawing, Test Method ASTM D5312-04 Standard Test
Method for Evaluation of Durability of Rock for Erosion Control Under Freezing and
Thawing Conditions; Specification Requirement: 5% loss, maximum.
4.04 GEOTEXTILES
An undamaged filter fabric with geo-composite drainage shall overlay all exposed earthen
embankment materials to be covered with rock. Filter fabric shall be placed to eliminate
migration of fines through the boulder structures and the geo-composite allows water to drain
from structure.
4.04.A- Filter Fabric
8oz filter fabric shall be Mirafi 180N or approved equivalent. The filter fabric shall be
used for the bank coverage not overlaid by geo-composite. CONTRACTOR shall submit
material specification for the chosen filter fabric to ENGINEER for approval. Filter
fabric shall be placed to have intimate contact with intact bank material. Filter Fabric
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shall not be torn or ripped by boulder installation and preventative measures such as less
than 6 inches of 6 inch minus well graded gravel bedding material, or approved native
alluvium shall be used. Install per manufacturers recommendations.
4.04.B- Geo-composite
Geo-composite shall be Hydrotech USA's Hydrodrain 300 or approved equivalent.
CONTRACTOR shall submit material specification for the chosen Geo-Composite to
ENGINEER for approval. It shall be installed at a minimum of 4 feet width on 10 feet
center (approximately 40% of total filter fabric coverage). Install per manufacturers
recommendations.
4.05 GRADED GRAVEL BEDDING
Native alluvium excavated from onsite may be used for graded gravel bedding. CONTRACTOR
shall submit a sample of the native material to be used in a five gallon bucket to the ENGINEER
for approval. If imported, aggregates for bedding of the boulder structures shall be crushed stone,
crushed slag, crushed gravel, or natural gravel which conforms to the quality requirements of
AASHTO M 147. Gravel bedding material harvested from onsite or imported shall meet the
gradation specified in Table 4.05.1.
Table 4.05.1 Graded gravel bedding.
6 inch
Weight Indicator minus
100% Passing 6"
50%-100% Passing 3"
40%-60% Passing 3/4"
10%- 30% Passing No. 20
0%-4% Passing No. 200
Two areas of alluvial fill shown in the plans will require the washing of fines into the alluvium
lifts as the banks and backfill is being placed. These areas include, the alluvial bank built
between the geomorphic structures and the restoration alluvial bar in the bypass pipe alignment.
The alluvium should be placed in a maximum of 18-inch lifts. For each lift, the contractor shall:
- Spread Fine Material in a 3-inch layer over the alluvium. Fine Material shall be an imported,
well-graded mixture of durable sand and river run gravel containing no particle with any
dimension greaser than 1/4". The material must be free from overburden, spoil, shale and
organic material. Non-durable rock, shale or with shale seams is not acceptable.
- Power Wash the alluvial surface until smaller materials settle between the larger cobbles and
boulders. The equipment used shall have a maximum flow rate of 5 gpm. The pressure shall
be sufficient enough to work the finer material down into the alluvium, but low enough as to
not expel material during the power washing process. Add additional Fine Material and
repeat this process until the smaller materials seals the alluvial layer, allowing water to pond
or run off the surface the alluvial full. Repeat this process for each 18-inch lift of alluvial fill.
Completion of Power Wash shall be approved by Engineer. BMP's shall be utilized
TS-36
4.06 CRUSHER FINES
A. Clean, hard, durable particles or fragments of/ inch minus select brown crushed granite
or basalt. Fines shall be evenly mixed throughout the aggregate. When produced from
gravel, fifty percent (50%) by weight, of the material retained on a Number four(4) sieve
shall have one fractured face.
B. The portion retained on the Number four (4) sieve shall have a maximum percentage of
wear of fifty(50) at five hundred (500) revolutions as determined by AASHTO T96-77
C. The portion passing a Number forty (40) sieve shall have a maximum liquid limit of
twenty-five (25) and a maximum plasticity index of seven (7), as determined by
AASHTO T89-81, respectively.
D. The crushed aggregate screenings shall be free from clay lumps, vegetable matter, and
deleterious material.
E. Grading requirements are as follows:
1. Percentage of Weight Passing a Square Mesh Sieve
2. AASHTO Ti 1-82 and T27-82
Sieve Percent Sieve Percent
Designation Passing Designation Passing
3/8 inch 100 No. 30 40 - 50
No. 4 95 - 100 No. 50 25 - 35
No. 8 75 - 80 No. 100 20 - 25
No. 16 55 - 65 No. 200 5 - 15
4.07 CDOT AGGREGATE BASE, CLASSES 2 AND 6
All Aggregate base course used for the project shall meet the requirements of Colorado
Department of Transportation(CDOT) Construction Specifications, Section 703, Aggregates.
4.08 PERFORMANCE ADJUSTMENTS
Minor adjustments to the placement and/or orientation of boulders associated with both the
upstream and downstream structures will be required once the construction of the two features is
complete,the diversion system is removed and water is returned to the main channel. This work
TS-37
will be performed in the flowing waters of the Roaring Fork River under the field direction of the
ENGINEER. It will consist of moving and/or rotating boulders with a tracked excavator or
similar equipment. All equipment used in this work will require the use of biodegradable fluid
per Section 3.03 of the Technical Specifications. This work is required to be completed by the
end of the in-channel work window(including extension) if applicable.
TS-38
SECTION 5 CONSTRUCTION OF CONCRETE STRUCTURES
5.01 GENERAL
The following specifications, standards and codes shall govern the construction of any and all
concrete structures, where applicable, with modifications as specified herein:
ACI 318- Building Code Requirements for Reinforced Concrete.
ACI 301 - Structural Concrete
ACI 304R- Guide for Measuring, Mixing, Transporting and Placing Concrete
ACI 301 Specifications for Structural Concrete for Buildings.
AWS D12.1 Recommended Practices for Welding Reinforcing Steel, Metal Inserts
and Connections in Reinforced Concrete Construction.
ANSI/ASTM C 478 Standard Specification for Precast Reinforced Concrete
Manhole Sections.
All designs for precast concrete shall be for M-18(H-20)AASHTO bridge loading.
ASTM A884/A884M-04 Standard Specification for Epoxy-Coated Steel Wire and
Welded Wire Reinforcement
ASTM C309 - Liquid Membrane-Forming Compounds for Curing Concrete
ASTM C979 - Pigments for Integrally Colored Concrete
5.02 PRECAST CONCRETE
The Pre-Cast Structures shall be as detailed in plans, constructed to meet or exceed ASTM C-478
Specification for Pre-cast Reinforced Concrete except where modified herein. The extent of
precast/prestressed concrete shall include manufacture,transportation and installation of the precast
portions of the structure including both conventionally reinforced and pretensioned members, as
shown on the contract drawings.
All concrete used in the pre-cast structures shall include 6.5% air by volume +/- 0.5% and shall
have a minimum compressive strength of 4,000 psi prior to placement. All Rebar layouts shall
be composed of Epoxy Coated rebar to meet or exceed ASTM standards for Grade 60 Rebar.
5.02.A. COLOR ADDITIVES
A. Color Additives: Comply with manufacturer's instructions. Deliver color
additives in original, unopened packaging. Store in dry conditions.
1. Manufacturer: Davis Colors manufactured by Davis Colors; phone
800-356-4848, e-mail info@daviscolors.com, or www.daviscolors.com
TS-39
on internet. Color of Lid Structures shall match a natural rock sample
provided by OWNER. A color sample chip shall be submitted to
OWNER for approval prior to manufacture.
2. Materials: Color additives shall contain pure, concentrated mineral
pigments specially processed for mixing into concrete and complying with
ASTM C979.
B. Admixtures: Do not use calcium chloride admixtures.
C. Dosage rate of color additive shall not exceed 10 percent of weight of
cementitious materials in mix.
5.02.B. FORMS
A. Form Facing Material:
1. Provide non-porous surface such as steel, plastic, or high-density
overlaid plywood with joints sealed to prevent leakage.
2. Texturing shall be performed on all Pre-Cast Lid Structures. All
exposed Lid surfaces shall be textured with a Proline Concrete Tools
Seamless Coarse Sandstone (http://www.prolineconcretetools.com) or
equivalent texture.
B. Form Release shall be non-staining and minimize the formation of -bug-
holes" in surface of concrete.
C. Stripping: Leave forms in place as long as practical. Remove forms when
concrete has reached a consistent age to maintain uniformity of curing conditions.
5.02.C. MIXES
A. Color Additives: Mix in accordance with manufacturer's instructions. Mix
until color additives are uniformly dispersed throughout mixture.
B. Provide a consistent water-cement ratio to achieve uniform color and texture.
C. Concrete mix shall have a 4 inch slump; 6.5% air plus or minus 0.5% and
4,000 psi 28 day cure strength prior to placement.
5.02.D. PATCHING
A. Fill holes and defects in concrete surface within 48 hours of form removal.
B. Use the same patching materials and techniques that were approved on mock-
up.
C. Make patches with a stiff mortar made with materials from the same sources
as the concrete. Adjust mortar mix proportions so dry patch matches dry adjacent
concrete. Add white cement to mortar mix if necessary to lighten it.
TS-40
5.02.E. CURING
A. Maintain concrete between 65 and 85 F (18 to 29 C) degrees during curing.
B. Colored Concrete: Apply curing compound in accordance with manufacturer's
instructions. Apply curing compound at consistent time for each pour to maintain
close color consistency. Curing compound shall comply with ASTM C309 and
be approved by color additive manufacturer for use with colored concrete.
5.02.F. TOLERANCES
A. Minor variations in appearance of colored concrete, which are similar to
natural variations in color and appearance of uncolored concrete, are acceptable.
5.03 PRE-CAST BASE STRUCTURES
The Pre-Cast Base Structures do not require coloring. Base piece of Structure shall have a cast-
in drain plug 3" diam. There shall be an expandable rubber stopper plug/wingnut assembly for
the drain. Styrene butadiene rubber; hardware is stainless steel, temperature range -80° to +180°
F, Shore A durometer hardness of 43 or equivalent.
Each Section of Structure shall have water-tight connections between the pieces, Henry Co. 1"
Rubberneck doubled or equivalent.
5.04 PRE-CAST LID STRUCTURES
The Pre-Cast Lid Structures shall require texture and coloring described in section 5.02.
Lid Structures shall have threaded inserts Dayton/Richmond Concrete Accessories
(http://www.daytonconcreteacc.com) #4, epoxy coated D-50 DBR Coupler System installed to
meet or all manufactures installation, procedures, recommendations and specifications.
The D-50 DBR Coupler shall be fastened internally in the pre-cast lid with a D-52 DBR 90
degree Hook Bar, epoxy coated, a minimum of 5.5 inches in the Lap length("B"dimension) and
a minimum of 6.0 inches in the Splice length ("C" dimension). The Splice shall be tied to the
adjacent horizontal reinforcing steel of the lid in the direction of the flow.
A D-52 DBR Epoxy Coated 180 degree Hook Rebar #4 size or equivalent shall be field
connected into the D-50 DBR Coupler System threaded inserts to manufacturer's specifications.
Rebar shall extend a minimum of 0.75ft beyond the lowest field joint elevation in the structure
and shall have a 5.0 inch minimum 180 degree hook below the lowest field joint elevation.
Rebar may be spliced in the vertical direction with a minimum of 12 inches splice overlap.
The field set rebar extending in the vertical direction shall be fastened with a grid of epoxy
coated#4 rebar in the horizontal plane a maximum of 30 inches vertical between grids.
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Pre-Cast lids shall be cast with a 3/4 inch 45 degree typical chamfer on all vertical and horizontal
corners. Lid Structures shall have an adequate number of 6 inch diameter concrete pumping
ports through the top. Lid Structures shall be cast with a seating lip depression and shall be
centered and secured on center on the supporting structures during placement.
Lid Structure shall have Elasto-Plastic, Bar Chip, Kyodo,
www.elastoplastic.com/english/products.htm or equivalent corrosion free Reinforcing Fibers
mixed as per Manufacturers Specifications.
5.05 PRE-CAST STRUCTURE PLACEMENT
Placement methods for the pre-cast structures are wholly the responsibility of the
CONTRACTOR. The structures may be constructed in sections for ease of placement and
achieving elevations. Site specific elevations of bedrock or other subsurface conditions are
unknown. Additional riser sections of intermediate sizes for precise field fitting and matching
elevations shall be allowed and included in the bid cost of the structures.
The integrity and adequacy of any lifting inserts cast into the structures in wholly the
responsibility of the CONTRACTOR.
The base of each structure shall be at or below the elevation shown on the plans. The crest of
each structure at the elevation shown on the plans, +/- the allowable tolerances described in
Section 2.08.
5.06 PRE-CAST INTERNAL FILL
Both Pre-Cast structures shall be filled completely, after being set in-place, with self-compacting
grout; 6 bag mix, #564. Grout backfill shall have a minimum density of 150 pounds per cubic
foot.
No wet grout shall be allowed in the flowing channel and the area adjacent to the grout ports
shall be sufficiently isolated from the flows of the channel. All grout ports must be cleaned,
isolated and maintained until the grout is sufficiently hardened. Pre-Cast Internal Fill shall be
fully cured to 3,000 psi at 28 days.
5.06.A. ANTI-FREEZING ADMIXTURE
If freezing temperatures are present, an accelerator such as Polarset can be used as 1-2%
of total. This will typically accelerate drying time by 1 day.
TS-42
SECTION 6 LANDSCAPING
6.01 PLANTINGS
The CONTACTOR is responsible to provide water suitable for establishment of vegetation.
Water shall be free from pollutants harmful to plants.
6.01.A. Grasses . All soil areas within the Project Limits, disturbed by construction
activities, shall be seeded with erosion control grasses. All mixes shall be Certified Seed
that is weed free and native strands of Pure Live Seed (PLS). Table 6.0IA provides the
seed type and rate for all areas outside of the Riparian Corridor (Dryland Mix Species.)
Table 6.01B provides the seed type and rate for all areas within the Riparian Corridor
(Riparian Mix Species.)
Table No 6.O1A. Dryland Mix Species PLS/Acre*
Western wheatgrass var. Arriba 35%
Thickspike wheatgrass var. Critana 25%
Alkali sacaton 10%
Bluebunch wheatgrass 10%
Indian ricegrass var. Rimrock 5%
Sideoats grama 5%
Bottlebrush squirreltail 10%
*drilled application=171bs per acre,
*broadcast application=34 lbs per acre.
a. Soil Preparation: After disturbance has ceased, soil shall be graded and raked
to 0.25" to 0.5" to create a seed bed. Soils must be moist prior to seed
application. Sprinkle areas to be seeded with water, using fine spray to avoid
washing or erosion of soil.
b. Seed Application: Hand broadcast at specified rate and lightly rake into soil.
Evenly apply weed free straw 2 inches thick over the seeds to reduce erosion
and wind losses. Do not use straw containing noxious weeds and foreign
materials. Do not apply seeds when weather is too windy, hot or drying, or
other adverse conditions exist. Optional hydromulch at better than specified
coverage.
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6.01.B Riparian Mix Application
Table No 6.O1B. Riparian Transitional Mix
Species PLS/Acre*
Western wheatgrass var. Arriba 35%
Streambank wheatgrass var. Sodar 20%
Slender Wheatgrass var. San Luis 10%
Thickspike Wheatgrass `Critana' 15%
Fowl Bluegrass vns 10%
Tufted Hairgrass vns 10%
*drilled application=19lbs per acre, *broadcast
application=38 lbs. per acre.
a) Soil Preparation: Sprinkle areas to be seeded with water, using fine spray
to avoid washing or erosion of soil and fines.
b) Seed Application: Broadcast seed at the specified rate and lightly rake into
soil. Do not apply seeds when weather is too windy, hot or drying, or
other adverse conditions exist.
6.O1.0 Riparian Plantings. Any willows, cottonwoods or native vegetation disturbed
shall be replanted in equivalent coverage, at equivalent elevations, in existing open areas.
Landscape tree planters shall be held open in the terrace banks at a minimum of 2.5 times
the width of the rootball (Note: if holes are held during construction they shall be a
minimum of 5' wide and approximately 2.5' deep). Carefully place Tree and backfill the
planters with top soil and fertilizer.
1. Ball and Burlapped Plants
All balled and burlapped plants shall have a solid ball of earth of adequate
specified size held in place securely. Ball shall be confined securely with wrapped
burlap and tightly bound with twine or rope. The burlap ball shall be encompassed
by a firm wire basket designed for the size and shape of the ball. Broken, loose,
damaged or manufactured ball shall be rejected.
2. Containerized Plants
Containerized plants should not be root-bound in their containers. Roots that
circle the container can become strangulated roots and hinder future growth of the
plant. Extensive roots that have grown out through the drain ports of the container
may be dried or damaged and become a source for infection and additional stress
for the plant. Any or all abnormalities listed above shall be reason for rejection.
3. Transplanting On-site Vegetation
TS-44
Native vegetation to be disturbed by excavation activities shall be transplanted.
Vegetation suitable for transplants should be healthy native species. Prune shrub
or tree to approximately 6 feet in height. Cleanly cut all broken and damaged
limbs. Herbaceous clusters are also suitable for transplants. Excavate a hole that is
larger than the transplant rootball. Scoop the entire root mass of the transplant
with the bucket of a trackhoe, keeping intact the rootball and soils. Immediately
place transplant in the excavated hole and hand backfill lightly compacting the
soil. Water transplant as necessary to ensure survival.
6.01.D. Fertilizers. Planted trees shall be fertilized with a slow-release fertilizer, and
placed deep into the planting hole and backfilled with soil to minimize fertilizer
absorption by weeds and turf. Use a complete slow release fertilizer in a NPK ratio of
1:2:1, nitrogen, phosphate, and potash.
6.01.E. Staking. All planted ball and burlap trees and large shrubs shall be staked with
hardwood stakes driven greater than 2 feet into the ground and extending 4 feet above the
ground. At least two stakes shall be used and placed so that the tree grows vertically
straight. Put the stake firmly in the ground, while assuring that it is not penetrating or
damaging the root ball. Ties shall be of three-quarter inch or wider bands of
polypropylene, elasticized or webbed strapping, or horticultural tape. Ties shall have a
smooth surface and be flexible to allow some movement of the trunk without damaging
the bark. Loop ties to and not girdle the trunks or branches. The CONTRACTOR is
responsible for removing stakes and support of the tree after one year installation.
6.01. F. Fencing. All planted ball and burlap trees shall have small mammal protective
fencing. Fencing shall be 14 gauge welded wire, or chicken wire with less than 6 inch
spacing. The welded wire shall be held 6 inches from the truck and placed as a cylinder
around the trunk of the tree at a minimum of 4 feet in height. The welded wire shall be
fastened to hardwood stakes with cord. The welded fencing shall be flush with the
ground.
6.02 EROSION CONTROL BLANKET
All Natural biodegradable Erosion Control Blankets (ECB) shall be placed on all disturbed
slopes greater than 10 percent grade. Material shall be North American Green/Tensar (800-772-
2040) SC150BN, or approved equivalent that is all natural coir fabric with a tensile strength 201
lbs/ft MD / 164 lbs/ft TD, a permissible shear force of 2.1 lbs/sqft, and mass of 8.3 oz/sqyd.
CONTRACTOR shall submit material specification for the chosen ECB to ENGINEER for
approval.
Install per manufactures recommendations. Store all coir fabric elevated off the ground and
insure that it is adequately covered to protect the material from damage. Protect fabric from
sharp objects that may damage the material. Materials damaged during transport, storage or
placement shall be replaced at the CONTRACTOR expense. The ENGINEER shall inspect and
approve all materials prior to installation.
TS-45
6.03 TOP SOIL
Topsoil shall be salvaged a minimum of 6 inches in depth from all disturbed areas. Salvaged
topsoil shall be stockpiled in areas that shall not interfere with construction phases and at least 15
feet away from areas of concentrated flows or pavement. The slopes of the stockpile shall not
exceed 2:1 horizontal to vertical. A silt fence or other adequate erosion control shall be installed
around the perimeter of each stockpile.
6.03.A. Top Soil Application. Top soil shall be applied to all areas for seeding and planting.
Top soil shall be applied at a minimum of 6 inches depth on all seeded areas, and shall be used to
backfill all shrub and tree plantings to the depth and twice the width of the root ball. Topsoil
shall not be placed when the ground or Topsoil is frozen, or excessively wet. Following the
spreading operation, the Topsoil surface shall be raked to final grades without surface
irregularities that could contribute to concentrated waterflow downslope. Top soil shall be raked
with 0.5 inch undulations for a seed bed.
6.03.B. Top Soil Material. Imported topsoil shall be a natural sandy loam that is weed free.
Imported Topsoil shall be properly stored and protected, and shall be free of roots, hard clay and
stones which shall not pass through a 1-inch square opening. It shall be a loamy mixture having
at least 90 percent passing No. 10 sieve. Below lists the soil properties:
1. Contain no less than 2 percent nor more than 13 percent organic matter, as determined
by the test for organic matter in accordance with ASTM D2974.
2. Contain no less than 12 percent or more than 40 percent clay, as determined in
accordance with ASTM D422.
3. Sand content shall not exceed 55 percent, as determined in accordance with ASTM
D422.
4. The pH shall not be lower than 5.0 or higher than 8.0. The pH shall be determined
with an acceptable pH meter on that portion of the sample passing the No. 10 sieve, in
accordance with the—Suggested Methods of Tests for Hydrogen Ion Concentration(pH)
of Soils, included in the ASTM Procedures for Testing Soils issued December 1964.
5. One hundred percent shall pass the 1-inch screen; 97-100 percent shall pass the 1.5-
inch screen, and 40-60 percent shall pass the No. 100 mesh sieve.
6. Topsoil shall be free of clods, gravel, and other inert material. It shall be free of
thistle, reed canary grass, creeping foxtail, noxious vegetation and seed. Should such
regenerative material be present in the soil, the CONTRACTOR shall remove, at his
expense and in a manner satisfactory to the Owner's Representative, all such growth,
both surface and root, which may appear in the imported Topsoil within 1 year following
acceptance of the work.
7. All soil to be seeded shall be amended with Humate and fertilizer product. The method
of incorporation of amendments shall result in a uniform application of material as
approved. Humate shall be applied at a rate of 1500 pounds per acre. The humate shall be
TS-46
applied using approximately 1 gallon of water for 1 pound of dry powder. The fertilizer
product shall be applied at a rate of 2000 pounds per acre.
6.04 LANDSCAPE IRRIGATION
Drip irrigation systems shall be installed to tree planters. The irrigation system shall water each
zone with less than 10 gallons per minute with irrigation water tapped from the Town of Basalt.
Zone valves shall be Hunter HPV-101G with a Hunter PC-300 outdoor controller or equivalent.
Perform the following field tests and inspections and prepare test reports:
1. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest
until no leaks exist.
2. Operational Test: After electrical circuitry has been energized, operate controllers and
automatic control valves to confirm proper system operation. Test and adjust controls and
safeties. Replace damaged and malfunctioning controls and equipment.
6.04. A. Start-up Service. CONTRACTOR to perform startup service. Verify that controllers
are installed and connected according to the Contract Documents. Verify that electrical wiring
installation complies with manufacturer's submittal and installation requirements. Complete
startup checks according to manufacturer's written instructions.
6.04.B. Irrigation adjustments. Adjust settings of controllers. Adjust automatic control valves
to provide flow rate of rated operating pressure required for each sprinkler circuit. Adjust
sprinklers so they shall be flush with, or not more than 1/2 inch(13 mm) above, finish grade.
6.04.C. Irrigation system cleaning. Flush dirt and debris from piping before installing
sprinklers and other devices.
TS-47
SECTION 7 HYDROLOGY
7.01 HYDROLOGY
Hydrology herein is based on gage ROARING FORK RIVER AB FRYINGPAN RIVER NR
BASALT (ROAFRYCO) for water years 1999 thru 2009. The gauge may be accessed online at:
http://www.dwr.state.co.us/Surface Water/data/detail_graph.aspx??MTYPE=DISCHRG&I D=RO
AFRYCO
Real time data may be seasonal and is provisional, subject to change. Statistical Analysis of
historical data is not a guarantee for the flow rates during construction and are provided herein
solely for the information of the CONTRACTOR. Maintenance of the River Flows, diversions,
erosion, environmental protection, BMPs and River stages during the construction period are
wholly the responsibility of the CONTRACTOR.
TABLE 7.01. Percent of record that average daily flows were exceeded on the Roaring Fork
River at the Project Area (cis)
Exceeded 95% 75% 60% 50% 40% 25% 5%
1-Aug 145 214 223 309 360 558 759
2-Aug 128 207 237 297 343 545 731
3-Aug 132 200 246 298 316 532 667
4-Aug 132 204 287 291 309 563 631
5-Aug 127 205 258 288 313 575 650
6-Aug 123 207 300 305 408 550 665
7-Aug 122 199 311 383 446 571 692
8-Aug 117 188 294 359 421 531 770
9-Aug 110 173 274 352 420 493 699
10-Aug 103 172 255 321 407 501 690
11-Aug 96 164 258 311 384 489 669
12-Aug 92 169 249 279 358 450 614
13-Aug 89 189 249 258 335 413 546
14-Aug 88 174 242 282 336 384 507
15-Aug 84 169 239 301 339 404 511
16-Aug 90 190 251 316 334 391 511
17-Aug 93 183 249 313 328 363 491
18-Aug 101 187 235 283 314 346 468
19-Aug 101 202 244 255 268 321 437
20-Aug 94 191 251 259 287 313 429
21-Aug 88 188 260 277 297 320 412
22-Aug 86 185 247 265 294 336 403
23-Aug 73 181 228 257 277 308 380
24-Aug 69 176 223 253 263 288 362
25-Aug 68 178 219 250 253 289 382
26-Aug 75 181 228 247 255 295 358
27-Aug 62 176 237 255 270 307 358
28-Aug 61 185 228 244 248 277 350
29-Aug 57 188 217 233 235 272 335
30-Aug 63 183 210 217 224 272 321
31-Aug 64 173 209 224 229 259 321
TS-48
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7.02 APPROXIMATE WSEL
Water Surface Elevations (WSEL) are based on limited survey and one-dimensional hydraulic
modeling. Actual WSELs in the field may vary from those listed herein. Approximate WSELs
are provided herein solely for the information of the CONTRACTOR.
Water Surface Elevations would be affected an unknown degree with temporary flow
obstructions of equipment, coffers, temporary alluvium placement or other construction
activities. The CONTRACTOR is wholly responsible for monitoring and controlling WSELs
during construction and any associated erosion, flooding, structure integrity or environmental
damage.
TABLE 7.02, Pre-Construction AND Post Construction Approximate Water Surface
Elevations (feet)
River Sta Q Total Min Ch El W.S. Elev W.S. Elev
(cfs) (ft) Existing Proposed
2248 400 6611.32 6615.74 6615.74
2248 250 6611.32 6615.24 6615.24
2248 200 6611.32 6615.02 6615.02
2248 150 6611.32 6614.77 6614.77
2248 100 6611.32 6614.46 6614.46
2036 400 6613.3 6614.33 6614.33
2036 250 6613.3 6614.07 6614.07
2036 200 6613.3 6613.99 6613.99
2036 150 6613.3 6613.87 6613.87
2036 100 6613.3 6613.74 6613.74
1890 400 6606.64 6610.66 6611.43
1890 250 6606.64 6610.11 6610.7
1890 200 6606.64 6609.86 6610.37
1890 150 6606.64 6609.57 6610.04
1890 100 6606.64 6609.26 6609.65
1857 400 6606.6 6610.35 6611.36
1857 250 6606.6 6609.80 6610.64
1857 200 6606.6 6609.52 6610.3
1857 150 6606.6 6609.21 6609.97
1857 100 6606.6 6608.74 6609.59
1819 400 6605.79 6609.66 6610.04
1819 250 6605.79 6608.94 6609.31
1819 200 6605.79 6608.67 6609.03
1819 150 6605.79 6608.34 6608.73
TS-53
1819 100 6605.79 6608.14 6608.38
River Sta Q Total Min Ch El W.S. Elev W.S. Elev
(cfs) (ft) Existing Proposed
1755 400 6605.21 6609.39 6610.02
1755 250 6605.21 6608.93 6609.29
1755 200 6605.21 6608.75 6609
1755 150 6605.21 6608.54 6608.7
1755 100 6605.21 6608.28 6608.35
1689 400 6604.89 6609.08 6608.74
1689 250 6604.89 6608.70 6608.34
1689 200 6604.89 6608.55 6608.18
1689 150 6604.89 6608.38 6608
1689 100 6604.89 6608.18 6607.79
1628 400 6605.67 6608.98 6608.48
1628 250 6605.67 6608.63 6608.18
1628 200 6605.67 6608.48 6608.05
1628 150 6605.67 6608.33 6607.91
1628 100 6605.67 6608.15 6607.73
1539 400 6607.5 6608.31 6607.98
1539 250 6607.5 6608.10 6607.74
1539 200 6607.5 6608.03 6607.66
1539 150 6607.5 6607.94 6607.56
1539 100 6607.5 6607.83 6607.45
TS-54
SECTION 8 MODIFICATIONS TO TIME OF COMPLETION
8.1 CONSTRUCTION WINDOW
Per Colorado Parks and Wildlife (CPW), the IN-STREAM construction window on the Roaring
Fork River is limited to from August 15 through September 30. The OWNER's goal is to
complete the in-water work within this timeframe. Because flow conditions during this
timeframe may vary, the OWNER's representative has negotiated with CPW to allow in-water
work from October 1 through February 15. If flow conditions are consistently above 250 cfs at
the start of the standard/authorized in-water work window and delay the start of in-water
construction, the CONTRACTOR may request an extension in writing to CPW. Construction
periods for work outside of the main channel shall be scheduled with Town of Basalt and Pitkin
County. All out of channel work is to be completed by April 15, 2017.
The date of beginning and the time for completion of the work are essential conditions of the
Contract Documents and the work embraced shall be commenced on a date specified in the
Notice to Proceed. The Contractor will proceed with the work at such rate of progress to ensure
full completion within the Contract time. It is expressly understood and agreed, by and between
the Contractor and the Owner, that the Contract time for the completion of the work described
herein is a reasonable time, taking into consideration the climatic and other factors prevailing in
the locality of the work. Every effort shall be made by the Contractor to complete the project
within the "Contract Time" shown in the bid, quote or proposal. The "Contract Time" anticipates
"Normal" weather and climate conditions in and around the vicinity of the Project site during the
times of year that the construction will be carried out.
Contractor acknowledges that the Project site is located in a high altitude environment where
weather patterns can be variable and extreme during winter months. Freezing conditions are
likely to be regularly encountered during the construction window.
Frazil ice is a winter occurrence throughout much of the Roaring Fork River in Colorado. Ice
can pile up significantly on many in-channel obstructions. Contractor is wholly responsible for
maintaining conditions that prevent buildup of ice during construction and for delays associated
with ice.
TS-55
SECTION 9 DEFINITIONS
B-Axis
The intermediate (and overturning) axis on a boulder.
Best Management Practices (BMPs)
Water and Soil Care Measures designed to prevent sediment soil erosion, minimize turbidity and
protect wetlands.
Coffer Dam
Structure used to isolate an area for dewatering.
Ordinary High Water Line(OHWL)
Approximate Water Surface Elevation at the 1 '''A year Flood.
In-Channel Work
All construction work occurring below the ordinary high water line or one and a half year flood
or in a wet channel.
Invert The cross-section that controls water flow.
On-Shore Work
All construction work occurring above the ordinary high water line or one and a half year flood.
Protect-In-Place
Protection of Structures or Vegetation by not disturbing them with adjacent construction
activities.
Thalweg
Lowest elevation of the river channel in cross section perpendicular to the direction of the main
current flow.
Toe
Point where a ground slope meets a low point and flattens out. Most commonly in rivers it refers
to the point where the bank slope meets the channel bottom slope.
River Right
The right side of the channel when looking downstream.
River Left
The left side of the channel when looking downstream.
Riparian Vegetation
Vegetation which is rooted in the water table of the adjacent river.
Water Surface Elevation
Elevation on the project datum, of the surface of water at a specified location.
TS-56
Attachment B - Pitkin County RICD Project—Temporary Bypass Culvert Addendum 1#1
HY-8 Input Variables and Results
Crossing Data-Temporary Crossing JJJ
Crossrg Properties _Calvert Properties
Name: I Add Culvert
Parameter V„IIIc Units Dlglmte CJvert I
U,DISCHARGE DATA _
Discharge Method 1 Mmun,Design,and Maximum lfJ Delete Culvert
MYin m Flow 50.00 cfs Piataeter Valle Urns
Design Fbw 100.00 cfs iF))CULVERT DATA
Mahirean Row 350.00 cfs tame
lei TAILWATER DATA ShoPe Circular
Channel Type Enter Constant Tailwater Elevation J _ Lamer Section Material Corrugated Aluminum
Charnel Invert Elevation 6606.00 ft
i(p Lower Section Material Corrugated Aluminum J
Constant Taiwater Elevation 6607.95 ft Olaf 5.00 ft
Rang Coe View...
Upper Section Marmg's n 0.0240
(6i)ROADWAY DATA Lower Section Mans s n 0.0240
Roadway Profle Shape Constant Roadway Elevation J _I
iti Culvert Type Sngle Brokenback
Fest Roadway Station 0.00 ft
Wet Configuration Square Edge with Headwall J
Gest Length 100.00 R
Inlet Depression? No
Crest Elevation 6616.00 _I R 161,SITE DATA
Roadway Surface Gravel J Inlet Station 25.00 ft
Top Width 20.00 ft • Inlet Elevation 6611.75 ft
• Break Station 364.15 ft
Break Elevation 6605.79 ft
Outlet Stollen 419.75 ft
Outlet Elevation 6605.49 ft
• ber of Barrels 2
tkn
Help I tack on any',t,i1 Kon for help on a specific topic Energy Daspatlm I Analyze Crossing I OK Cancel
Total Rating Curve(Performance)
h)H..v:Tmvo.asser.,
66185-
6618 0-
6617 5-
66170-
66165-
E -
66160
6615 5-
66150-
66145-
6614 0-
6613 5-
it
-66135-
1 1 1 1 1 1 r 1 1 1 1 1 1 1 1 1
50 100 150 200 250 300 350 400
Total Ds.argot Ids
Mel00lvol EOo
HY-8 Analysis Results
Culvert Summary Table - Barrel 1
Culvert Crossing: Temporary Crossing
Total Culvert Headwate Inlet Outlet Flow Type Outlet Tailwater Outlet Tailwater
Discharge Discharge r Control Control Depth(ft) Depth(ft) Velocity Velocity
(cfs) (cfs) Elevation Depth(ft) Depth(ft) (ft/s) (ft/s)
(ft)
50.00 50.00 6613.63 1.88 0.0* 1-JS1t 2.46 1.95 2.60 0.00
80.00 80.00 6614.16 2.41 0.0* 1-JS1t 2.46 1.95 4.16 0.00
100.00 100.00 6614.49 2.74 0.0* 1-JS1t 2.46 1.95 5.20 0.00
140.00 140.00 6615.09 3.34 0.0* 1-S2n 2.46 1.95 7.28 0.00
170.00 170.00 6615.52 3.77 0.0* 1-S2n 2.61 1.95 8.19 0.00
200.00 200.00 6615.93 4.18 0.0* 1-S2n 2.84 1.95 8.68 0.00
230.00 230.00 6616.34 4.59 0.0* 1-S2n 3.06 1.95 9.14 0.00
260.00 260.00 6616.77 5.02 0.09 5-S2n 3.26 1.95 9.59 0.00
290.00 290.00 6617.21 5.46 1.03 5-S2n 3.45 1.95 10.04 0.00
320.00 320.00 6617.68 5.93 2.09 5-S2n 3.62 1.95 10.50 0.00
350.00 337.61 6618.13 6.23 6.43 7-M1t 3.72 1.95 10.78 0.00
HY-8 Analysis Results
Crossing Summary Table
Culvert Crossing: Temporary Crossing
Headwater Elevation Total Discharge(cfs) Barrel 1 Discharge Roadway Discharge Iterations
(ft) (cfs) (cfs)
6613.63 50.00 50.00 0.00 1
6614.16 80.00 80.00 0.00 1
6614.49 100.00 100.00 0.00 1
6615.09 140.00 140.00 0.00 1
6615.52 170.00 170.00 0.00 1
6615.93 200.00 200.00 0.00 1
6616.34 230.00 230.00 0.00 1
6616.77 260.00 260.00 0.00 1
6617.21 290.00 290.00 0.00 1
6617.68 320.00 320.00 0.00 1
6618.13 350.00 337.61 12.20 13
6618.00 337.61 337.61 0.00 Overtopping
HY-8 Analysis Results
Water Surface Profiles
Culvert Crossing: Temporary Crossing
Total Culvert Headwater Inlet Control Outlet Flow Type Length Full Length Free
Discharge Discharge Elevation(ft) Depth(ft) Control (ft) (ft)
(cfs) (cfs) Depth(ft)
50.00 50.00 6613.63 1.88 0.0* 1-JS1t 0.00 394.75
80.00 80.00 6614.16 2.41 0.0* 1-JS1t 0.00 394.75
100.00 100.00 6614.49 2.74 �0.0* 1-JS1t 0.00 394.75
140.00 140.00 6615.09 3.34 0.0* 1-S2n 0.00 394.75
170.00 170.00 6615.52 3.77 0.0* 1-S2n 0.00 394.75
200.00 200.00 6615.93 4.18 0.0* 1-S2n 0.00 394.75
230.00 230.00 6616.34 4.59 0.0* 1-S2n 0.00 394.75
260.00 260.00 6616.77 5.02 0.09 5-S2n 0.00 394.75
290.00 290.00 6617.21 5.46 1.03 5-S2n 0.00 394.75
320.00 320.00 6617.68 5.93 2.09 5-S2n 0.00 394.75
350.00 337.61 6618.13 6.23 6.43 7-M1t 0.00 394.75
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�,„ }( ;/ e `� . CONSTRUCTION NOTES:
�� ° - �F% 1 A� / ` ` \t ..,�u/>.11'-' 1. CONTRACTOR RESPONSIBLE FOR DESIGN, • +p"`'t °`
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', ' F '�° TURBIDITY CURTAIN`S \\ OF WATER SYSTEM. DETAILS INCLUDED IN THIS ,'
.'�\`\�}•`. '� •R -. °. (SEE DETAIL, �'a\� ` `� J�-r PLAN SET ARE FOR PLANNING AND COST '" 1/$1/2016
r_ •1 ,,• r r'r•r.•e: `\ %SHEET D1, `\�\`\ ESTIMATING PURPOSES ONLY. N`
-' e�} OIL BOOM , „.'„?..;!;..*,"?.?,-...',',1” .r \\' `\ ` •
• „ \ .\ 2. FOOTPRINT OF THE CARE OF WATER SYSTEM,
(SEE DETAIL, g •• \
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:�,`: e SHEET Dl) •• .. _' � "`r �\ ``U ` INCLUDING SHEET PILE DAM, PIPE TRENCH AND 1--
`"* \ `` PIPE OUTFALL SHALL BE RESTORED TO U
PIP EXISTING i I' ••• r•• C i 4 •,,,s,
'.' ' PRE-CONSTRUCTION GRADE AND CONDITION W Z
•• • �•\� COFFER CHI •`` \ \ UNLESS AS OTHERWISE INDICATED IN THESE Q
TREES ' ► •;- , v (SEE DETAIL \ \\\, \\00\.,‘\\\\, -\ PLANS. J
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BYPASS PIPE `p /`. . 1 i ` ‘` 'a ' 3. ALL TEMPORARY PIPES SHALL BE CORRUGATED J 0—
OUTLET =3 ' " � "' DEWATERING PUMP \\‘''‘,`:\\‘‘‘‘.,\,`." ♦. QCZ
METAL OR DUAL WALLED HDPE PIPE. Z
(SEE DETAIL. SHEET CW05) t / AND FILTER \ �\ O U W
SEE NOTE 6, THIS SHEET) ;: (SEE DETAIL, SHEET D2
( ` /� AND SPECS FOR \ 4. ENGINEER TO MARK AND CONTRACTOR TO
�l` MAINTAIN LIMITS OF DISTURBANCE IN FIELD.
'PIP EXISTING " •t. INFORMATION) ' ' `'4' o ` Q Q
ACCESS ROAD #2 �` " W
iii5. HARVEST ALL STAKES AND POLES WITHIN LIMITS D[ Z
(SEE DETAILS, SHEET CW 4) TREES \ � ' \ {\\ OF DISTURBANCE AND REUSE DURING 0 0
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•' -"/0 1 \ " POST-CONSTRUCTION RESTORATION. W —OZ 0
' DRAINAGE , ' ~ •'r ` • ' ' �` 6. CONTRACTOR TO MONITOR BYPASS OUTFALL FOR
INLET PROTECTION ' r<` \ '3: \ i'-- ' W
--��`,�, ,,,y 1? ` ,k \„ `, \e `-� EROSION AND MATERIAL REPAIRS/ADD MATERIAL L W
++o I k, y AS REQUIRED. COORDINATE WITH ENGINEER ON pCZ
r - ", / • ANY MODIFICATION TO THE OUTFALL DESIGN. Z J Q
t? x, :' \ PIP EXISTING I
`A- SPILL CLEAN UP '♦' " \ TREES ALONG RIVER ,�j ,", 0 Z%LI U
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STAGING AREA ' KIT \ ` O Z •
�& FUELING AREA " ` Z Q
RELOCATE F� �'U y J �O ' \ \ `
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•V•4• LARGE WOODY
✓•QQ#!l4 DEBRIS r-:y7 . ,.,, '. �i \� it Z
>�ll�� ilea LIMITS OF , \, } �. " k i' - ,X-}5."--
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BIDITY CURTAIN TEMPORARY
ACCESS ROAD #1 w I 4,, (SEE DETAIL, ACCESS RAMP ®'""•`"""°"•
SEE DETAIL, SHEET CW04 STAGING -ISA,: ►-'st',; `�
( ) SPILL CLEAN l xe” SHEET D1) y V
�y AREA UP KIT i \ V A 0 -r ►r,. \ \ " `�,<\ ♦ ` '�yGf STAGING AREA GRADING �4 TEMPORARY 2 X 60" CMP r `� \ ` \• ��9% �'' i II• CarbOndAle r0 ne
, . (APPROX 250 CY) pQ f • BYPASS PIPE i j' < SHEET PILE \ \ '� 9 \� 2 °• o; ^1 ENGINEER TO PROVIDE (SEE DETAILS, SHEET CW03) I COFFER DAM
\ \\ \`; ,��� a.. m
1' I SEE SHEET CWO2 - � `` t I Q`�� �' rrup couarr
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CARE OF WATER-MAIN SITE L.� o
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BID TAB-ADDENDUM#2-June 20,2016
PITKIN COUNTY RECREATIONAL IN-CHANNEL DIVERSION PROJECT
Item# Description Quantity Unit Unit Cost Total Cost Totals
Site Setup
• i _ Mobilization/demobilization/bondingfinsurance 1 LS $54,359 $54,359 $54,359
2 Construction survey and stake 1 LS $7,000 $7,000 $7,000
Sub Total: $61,359
Best Management Practices
3 Traffic control 1 LS $1,000 $1,000 $1,000
4 Construction Signage/Staging Fence 1 LS $2,000 $2,000 $2,000
5 Protect in Place 1 LS $500 $500 $500
6 Construction Access 1 I S $2,000 $2,000 $2,000
7 Erosion and sediment control 1 I S $2,000 $2,000 $2,000
8 Silt Fence 1 I.S $500 $500 $500
9 Erosion Control Logs 30 LF $10 $300 $300
Sub Total: $8,300
Temporary Care of Water
10 Bypass pipe trench excavation and backfill _ 810 CY $20 $16,200 $16,200
Washing of Fines into Installed Alluvium 111 CY $15 $1,665 $1,665
-12 Furnish and install 60-inch Bypass Pipe 790 LF $85 $67,150 $67,150
13 Demo and Dispose 60-inch Bypass Pipe 790 I F $1 $790 $790
14 Alluvium ballast placed on pipe every 50' 22 CY $20 $440 $440
15 Temporary bypass outlet pool excavation and backfill 161 CY $20 $3,220 $3,220
16 Temporary boulder bank protection at bypass outlet 81 I ONS $55 $4,785 $4,785
17 Temporary boulder energy dissipation basin 42 TONS $55 $2,310 $2,310
18 Furnish and install sheet pile coffer dam 2,430 SF $5 $26,275 $2.6,275
19 Demo and dispose sheet pile coffer dam 2,430 SF $1 $12,430 $12,430
20 Furnish,install,and maintain oil boom 1 LS $1,500 $1,500I $1,500
21 Dewatering of Isolated Area 1 LS $20,000 $20,000 $70,000
22 Filtering of Water from Isolated Area 1 LS $1,200 $1,200 $1,200
Y3 Filtered Material Disposal 10 CY $20 $200 $200
Sub Total: $158,165
Right Bank Stone Toe Protection STA.16+25 to 18+50
24 Boulder re-setting 1,159 TONS $20 $23,180 $23,180
25 Furnish and install filter fabric 333 SY $18.00 $5,994 $5,994
26 Furnish and Install Geo-Composite 133 SY $21 $2,793 $2,793
27 Channel alluvium and bank material excavation 170 CY $30 $5,100 $5,100
28 Excavation backfill 170 - CY $10 $1,700 $1,700
29 Haul-off and disposal of excavated material offsite 0 CY $500 $0 $0
Screen and Haul Excavated Material to Disposal Site on Emma Rd 0 CY $500 $0 $0
31 Furnish and place 60 inch boulder 381 I ONS $100 $38,700 $38,700
Sub Total: $77,467
Downstream Feature
32 Channel alluvium and boulder excavation 222 CY $30 $6,600 $6,600
33 Backfill wave features with native alluvium 44 CY $15 $660 $660
34 Grade alluvium pool/riffle main channel STA.15+50 177 CY $5 $850 $850
35 Haul-off and disposal of excavated material offsite 0 CY $500 $0 $0
Screen and Haul Excavated Material to Disposal Site on Emma Rd 0 CY $500 $0 $0
37 Furnish and place 60 inch boulder 332 TONS $120 $39,840 $39,840
38 Furnish and deliver pre-cast concrete wave block structure 2 EA $10,000 $20,000 $20,000
39 Pre-cast concrete wave block structure placed 2 EA $500 $1,000 $1,000
40 Furnish,deliver,and place grout 10 CY $400 $4,000 $4,000
41 Furnish and place 3/4"washed gravel 2 CY $50 $100 $100
1-- Performance Adjustment of Downstream Feature 2 tiRS $1,000 $2,000 $2,000
Sub Total: $75,050
Upstream Feature
43 Channel alluvium and boulder excavation 244 CY $30 $7,320 $7,320
44 Backfill wave features with native alluvium 49 CY $5 $245 $245
45 Haul-off and disposal of excavated material offsite 0 CY $500 $0 $0
Screen and Haul Excavated Material to Disposal Site on Emma Rd 195 CY $35 $6,825 $6,825
47 Furnish and place 60 inch boulder 470 TONS $120 $56,400 $56,400
48 Furnish and deliver pre-cast concrete wave block structure 2 EA $10,000 $20,000 $20,000
49 Pre-cast concrete wave block structure placed 2 EA $500 $1,000 $1,000
50 Furnish,deliver,and place grout 10 CY $400 $4,000 $4,000
51 Furnish and place 3/4"washed gravel 2 CY $100 $200 $200
L Performance Adjustment of Upstream Feature 2 HRS $1,000 $2,000 $2,000
Sub Total: $97,990
Channel Grading and Geomorphic Structures ,
53 Place habitat boulders 40 TONS $85 $3,400 $3,400
54 Furnish and place 48 inch boulders 785 TONS $85 $66,300 $66,300
55 Channel alluvium and bank material excavation 1,618 CY $35 $56,630 $56,630
56 Backfill of geomorphic structures and restored bank grading with native alluvium 1,145 CY $10 $11,450 $11,450
Washing of Fines into Installed Alluvium 260 CY $15 $3,900 $3,900
58 Raul-off and disposal of excavated material offsite 240 CY $35 $8,400 $8,400
Haul Excavated Material to Disposal Site on Emma Rd 55 CY $35 $1,925 $1,925
Sub Total: $152,005
Pitkin County RICO Project
Bid Tab-Addendum#2 Page 1
Main Site Restoration
60 Transplant willows and small cottonwoods 429 SY $30 $12,870 $12,870
61 Plant native E.C.grass with mulch/tackfiier 0 AC $7,000 $0 $0
62 Furnish and plant native riparian shrubs 95 EA $55 $5,225 $5,225
63 Harvest and plant willow stakes 700 EA $8 $5,600 $5,600
• 64 Re-use and place boulders grade control structure-bypass alignment 90 - TONS $50 $4,500 $4,500
Sub Total: $28,195
Emergency Access Pathway(from Two Rivers Rd to Boulder Terrace)
65 Boulder re-setting 146 TONS $55 $8,030 $8,030
66 Channel alluvium and bank material excavation 10? CY $15 $1,530 $1,530
67 Furnish,place,and compact crusher fines 6 CY $200 $1,200 $1,200
Furnish,place,and compact COOT Class 6 Aggregate Base 12 CY $55 $660 $660
Furnish,place,and compact COOT Class 2 Aggregate Base 18 CY $55 $990 $990
70 Boulder retaining structures,furnished and placed 40 1 ONS $85 $3,400 $3,400
71 Alluvial backfill 23 CY $10 $230 $230
12 Haul-off and disposal of excavated material offsite 49 CY $35 $1,715 $1,715
Sub Total: $17,755
Fisherman's Park Boat Ramp
73 Erosion control blanket 0 SY $200 $0 $0
74 Harvest and plant willow stakes 90 EA $8 $720 $720
75 Furnish and plant native riparian shrubs 40 EA $50 $2,000 $2,000
76 Furnish and plant west river birch trees 2 EA $500 $1,000 $1,000
77 Channel alluvium and bank material excavation 133 CY $15 $1,995 $1,995
78 Excavation backfill 25 CY $10 $250 $250
79 Haul-off and disposal of excavated material offsite 135 CY $10 $1,350 $1,350
80 Fumish and place 48 inch boulders 150 TONS $75 $11,250 _ $11,250
81 Resurface and Improve Fisherman's Park Boat Ramp 1 ALLOW $4,000 $4,000 $4,000
Sub Total: $22,565
ITEMIZED CONSTRUCTION SUBTOTAL $698,851
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Pitkin County RICD Project
Bid Tab-Addendum#2 Page 2
Contract# Rev.08.29.11 jaa
Budget Line Item#
It is further understood that the right is reserved by the County to reject any and all proposals
and it is agreed that the proposals may not be withdrawn for a period of ten (10) days from
specified time for receiving proposals.
The Proposer acknowledges receipt of Addenda Nos. 1 &2
The right is reserved to waive any informalities and to reject any Proposal.
(Type/Print name under all signatures)
Dated this L l day of `'`'^e- ,2016
-.. - (Corporate seal) PROP R:
•
= _
- _ Brian Barackman President
1.7O'( AVefufcia cle) Sol #ZZ`(
bwc. o Co. 3 301 Sib. f ,I •‘ C.o�-ado
SIGNATURES: If the proposal is being submitted by a Corporation, the Proposer
should be signed by an officer, i.e. President or vice-president. The signature of the officer
signing shall be attested to by the secretary and properly sealed. If the proposal is being
submitted by an individual or a partnership, the proposal shall so indicate and be properly
signed.
(Attach a Separate Sheet for Suggested Cost Savings Alternatives)
w;11 S QST Yny jdec 5 OI' G05 Sa
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