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Home My WebLink Aboutbocc.con.267.2012 Rev. 08-30-11 jls COUNTY CLERK'S CONTRACT COVERSHEET CONTRACT #: 267-2012 ORIGINATING DEPARTMENT: Public Works Transportation PROCUREMENT OFFICER: Gerald Fielding PHONE#: -9205206 PROJECT NAME: Snowmass Creek Road Micropile Wall CONTRACTOR: Goggins and Sons, INC DOLLAR AMOUNT: $177,650.00 LINE ITEM# 110.54.96300.82900 CONTRACT EXECUTION DATE: 10/19/2012 CONTRACT END DATE: 12/31/2012 AUTOMATIC RENEWAL: 0 YES ®NO TERM: ❑ BOCC AGENDA ITEM(Grants,IGA) ❑ STAFF AUTHORIZED SIGNATURE (Per Revised Procurement Code 7/2005) (Requires BOCC Signature) ® OVER$50,000(Requires Section Leader&County Manager's Signature) ✓ CHECK PROCUREMENT TYPE: ❑None ❑ Informal ®Formal 0 Sole Source ❑Emergency 0 Outside Agency/State Bid ❑ Compliance with C.R.S. 8-17-5-101, 102 as amended(Immigration Form) 0 Exempt ❑ Contract Renewal ✓ CHECK CONTRACT TYPE: ❑ Services/Maintenance ❑Employment ❑License/Use ❑Intergovernmental Agreement(Resolution Required) ❑Lease 0 Non-Profit Construction 0 Quasi-Public(e.g.-AVH) ❑ Goods,Equipment, Supplies ❑ Grant e Agreements Order/Contract No Amendment Finance &Resolution Required) Cha ❑ Other(e.g. revenue) ❑ g (C/O: 10%or$25K whichever is the lesser must have County Manager signature) All Contracts should be proofed and all exhibits and notices must be attached for the following: ✓ ®No Pages Missing ✓® All Other Blanks Filled In ✓ ®If Page Left Intentionally Blank—Note on Page ✓Z All Exhibits Attached ✓ ®Page numbered consecutively 10 All Legal Descriptions attached(if applicable) ✓ ®All Original Signatures Affixed 10 Notice of Award/Notice to Proceed Attached (if applicable) ✓ ®All Dates Filled In 10 Warranty(if applicable) ✓ ❑ Special Instructions for Finance Department: ✓ ® Authorized Procurement Officer's Name: Gerald Fielding BY CHECKING ABOVE AND ENTERING NAME,THE U READY FOR SCANNING PERSON INDICATES THAT THE ATTACHED DOCUMENT HAS BEEN PROOFED AND CLERK'S OFFICE WILL KEEP ORIGINAL DOCUMENTS MUST COMPLIANCE E WITH THISITHECOLOI COLORADO STATE ARCHIVES RETAINAGE SCHEDULE. ALL ATTACHMENTS Contract#267-2012 Rev.02/06/20121m 6/7/12js Budget Line Item# 110.54.96300.82900 ‘90"IiIilli COUNT • PITKIN COUNTY CONSTRUCTION CONTRACT Snowmass Creek Road Micropile Wall THIS CONTRACT, made this 19th day of October 2012, by and between the Board of County Commissioners of Pitkin County, Colorado, (hereinafter called the "County") and Coggins and on Ss, INC (hereinafter called the "Contractor") to perform the following work: Snowmass Creek Road Micro rile Wall Project("Project"). I. Term of Contract. The term of this contract is from 10/19/2012 to December 31,2012. II. Sco e of Work and Work Schedule. A. As delineated in the plans and specifications attached. B. All work performed under this Contract shall be done according to the following work schedule: As delineated in contractors proposal, ending date of construction to be December 7,2012 t III. pay_ ment._The County agrees to pay, and the o Contractor one hundred sevent c seven thou, sand snx for the performance of this Contract, the total price rease hundred fift y Dollars ($177,650) in accordance with uhisContract, by the County may becoffset in accordance with the provisions of this Contract; any payment by any amount the Contractor owes the County for any reason. A. Payment Procedures. 1. Contractor shall submit applications for payment every 30 for work done to date. 2. Progress payments. a. County shall make progress payments, within thirty (30) days of County's approval of Contractor's pay request. b. If Contractor is satisfactorily performing this Contract, progress ercent 95% of the calculated value of any Project work payments shall be in an �omp tletedl less the aggregate of payments previously 1 made until fifty percent (50%) of the Project work required by this Contract has been performed. Thereafter, County shall pay all remaining progress payments and maintain only existing retainage if, in the opinion of the Procurement Officer and County, satisfactory progress is being made on the Project. 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 Obli ations. 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. 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 2 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 perfoiniing or furnishing any of the Project work under a direct or indirect Contract with Contractor Contract tractor hall responsible acts and omissions. Nothing in 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 tems Officer.aan d conditions of this Contract for the benefit of the County and the Procurem t 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 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�e this Contract, the County shall assist Contractor shall obtain when and pay for all construction permits and licenses. 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 3 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. 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: 4 . 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 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 5 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. 6 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 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. 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. 7 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 • 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. 8 Minimum Limits: Bodily Injury/Property Damage(Each Accident) $ 1,000,000 4. Special Coverages (check as appropriate and insert amount): ® (1)Performance Bond $88.825 ❑Labor and Material $ n Payment Bond $ n (2)Professional Errors and Omissions n (3)Aircraft Liability ❑ (4) Owner's Protective ❑ (5)Builder's Risk n (6)Boiler and Machinery ❑ (7)Loss of Use Insurance ❑ (8)Pollution Liability n (9)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 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." 9 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. 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. 10 • 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 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. 11 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 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 12 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. 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. 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 13 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 2 years from date of Final Payment. Landscaping replacement shall be warranted for two (2) growing seasons. 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. 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. 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 14 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 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 15 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 December 7, 2012. Liquidated damages of$250.00 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. 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. 16 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 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; 17 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. 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. 18 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. 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. 19 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 obligatioris under this Contract are 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. 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: 20 1. To Pitkin County with copies to: Gerald Fielding, County Engineer Pitkin County Attorney's Office 76 Service Center Road 530 E. Main Street,#302 Aspen, Colorado 81611 Aspen, Colorado 81611 Fax: 970-920-5397 Fax: (970) 920-5198 2. To Contractor: Coggin and Sons, INC 9512 Titan Park Circle Littleton, CO 80125 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. 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. 21 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. 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 22 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. ADDENDUM. IN WITNESS WHEREOF,the parties have executed this Contract as of the date first set out herein above. CONTRACTOR Goggins an. .ons r-.--- By: ■ . e Title D /, Date PITKIN COUNTY, COLORADO SE fir," ON '''PROV AL: MANAGER APPR• 'L: `� �Ii fit. 1 :0._„J./� •24 � i Brian Pettet Jon Pea ock, ounty Manager Date Public Works Director RECOMMENDED FOR APPROVAL: j' oy gijr `O 4.Z. Gerald Fielding, Date County Engineer 23 Intentionally Left Blank 2 y Contract#267-2012 Rev.08.29.1 I jaa Budget Line Item# 110.54.96300.82900 (911KIN 4 PROPOSAL FORM Proposal Time: Proposal Date: From: Coggins&Sons, Inc. 9512 Titan Park Circle Littleton, CO 80125 Phone 303-791-9911 Fax 303-791-0967 E-mail Address: ccoggins @cogginsandsons.com To: THE PITKIN COUNTY BOARD OF COUNTY COMMISSIONERS c/o G.R. Fielding 76 Service Center Road Aspen, CO 81611 For: Snowmass Creek Road Micropile Wall .8 miles Snowmass Creek Road ` Pursuant to a request by the Pitkin County Commissioners, the undersigned Proposer having examined this Request for Proposals (RFP), including the site of the proposed Project and being familiar with conditions surrounding the construction of the proposed Project, including the availability of materials and labor hereby proposed to furnish all labor, materials, supplies, bonds, permits, services and supervision required to perform the Project for the project identified above and listed below and as detailed in this RFP for the sum of: The lump sum of One Hundred Seventy Seven Thousand Six Hundred Fifty Dollars ($ 177,650.00 ) (This includes$10,000.00 contingency for tree removal as per addendum#1) The project will be completed within 32 working days of initiating the Project. Description: Snowmass Creek Road Micropile Wall as attached Z ° .Z,lift Blank � �� Contract#267-2012 Rev.08.29.11 jaa Budget Line Item# 110.54.96300.82900 Statement and Detailed Approach to Project: Or as attached Please see attached Proposed project timeline: Or as attached Please see attached Proposed Payment Schedule: Or as attached Monthly draws less 10% retention payment in full within 90 days of completion Qualifications of Proposer: Please insert names address, phone numbers and description of similar Project for Reference Checks. 1. Or as attached Please see attached 2. 3. QUALIFICATIONS OF PERSONNEL Please list assigned personnel and their qualifications 1.Please see attached k 27 Intentionally Left Blank Contract#267-2012 Rev.08.29.11 jaa Budget Line Item# 110.54.96300.82900 Qualifications:Please see attached List of similar Project performed:Please see attached Reference Name, &Phone Number:Please see attached 2. Qualifications: List of similar Project performed: ftw Reference Name, &Phone Number: 3. Qualifications: List of similar Project performed: Reference Name, &Phone Number: 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 24 Intentionally Left Blank 30 Contract#267-2012 Rev.08.29.11 jaa Budget Line Item# 110.54.96300.82900 The right is reserved to waive any informalities and to reject any Proposal. Type/Print name under all signatures Dated this /I, day of duo3''- , 2012 (Corporate seal) PROPOSER: /1// 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 Intentionally Left Blank 3z NS & SONS, INC. Caisson Drilling,Excavation Shoring,Tieback Anchors MICRO-PILE PROPOSAL October 16,2012 G.R.Fielding Pitkin County Public Works 76 Service Center Road Aspen,CO 81611 970-920-5206(Fax)970-920-5373 erald.fieldin co. itkin.co.us RE:Snowmass Creek Road Micro-Pile Wall Snowmass,CO This proposal has been based on CTL Thompson Drawings dated 9/28/12,and Addendum#1 received 10/12/12. A.PROPOSAL INCLUDES AND IS CONTINGENT wall as shown FOLLOWING: the drawings mentioned above.GENT UPON THE FOLLOO WING: 1. The installation of the Micro-Pile Includes all traffic control,v l of 224'-0"If of asphalt necessary.all nrae cutting necessary for micro pile 4. Per addendum and removal provided below for 4. Per addendum#1 an allowance has been p installation. 5. One mobilization. E FOLLOWING AND SHALL BE LISTED UNDER EXCLUSIONS IN ANY SUBCONTRAC B.PROPOSAL EXCLUDES TH Iles. ENTERED INTO: Sacrificial test pile to demonstrate design criteria prior to installation of production p 1. S 2. Testing of production piles. 3. Any earth retention requirements for Micro-Pile installation. 4. Installation of pavement. interfere with the pile Co ins&Sons will call in a utility locateti arise which may all known utilities to 5. Prior be mobilization(by er prior to construction.If utility conflicts shall be located(by others)p plus(15%)basis,for items such as but not limited or anchor installation,this will be invoiced on a cost p ( labor or additional engineering time required uir ettAaccurately locate lthe utilities.Any additional holing,time er the attached rate inns the removal,vhe existing utility above or below ground which may additional time required will be invoiced per permissible are to be removed or installation or the a any installation of the earth retention system.Power lines closer than legally p locations.Layout provided de-energized.No utilities anticipate Field engineering,survey,control and layout of all Micro-Piles and/or anchor o 6. hr plus 15%on all by SGM. 7. Man made obstruction removal.Obstruction removal will be invoiced at$550.00 p materials(flow fill etc.). 8. Testing of materials by others. 37 Intentionally Left 13Jank 9. Removal of all materials once installed. 10. Full time safety representative. C.BID QUALIFICATIONS 1. The exact quantities included in this proposal reflected rk on ncludedon the subcontract dated 9/28/12 and shall be the basis for quantity and scope of our 2. Any delays caused by others will be invoiced at the rates per the attached sheet for equipment and personnel. 3. Owner shall supply a water source. 4. A bond will be furnished,if required,with premium to be paid for by others prior to mobilization.A bond rate of.009%to the final contract amount will apply. 5. The governing law of the subcontract shall be by the Sons state oof Color enjoy the opportunity to review this 6. Prior to the acceptance of this proposal,Cogg 167 650.00 proposal and scope of work. LUMP SUM COST 10 000.00 ADD ALLOWANCE PER ADDENDUM#1 FOR TREE CUTTING REMOVAL (BASED ON THE ABOVE QUALIFICATIONS Sincerely, / Coy Co! ins cco::' s• co:ansa •sons.com 9512 Titan Park Circle Littleton,CO 80125 (303)791-9911/Fax:(303 791-0967) -3 Sr Intentionally Left Blank 7 ' COGGINS & SONS, INC. Caisson Drilling,Excavation Shoring,Tieback Anchors B. Pro'ect A roach • Proposed Traffic control plan The giopo proposed Snowmass creek construction zone is shown to be 200' in length. It is of Goggins&.Sons intent to provide one micropaiie at each wall anc1100'south as well, approximately 100'north of the proposed vidin staging areas for equipment and materials. The"construction ed barriers for the providing type 7 barriers or equivalent sectioned off utilizing CLOT typ length of the work area Signage will be based upon CdDDOT standards and an actual traffic control plan shall be provided upon contract • Project Schedule Please find attached Coggin&Sons proposed construction schedule with detailed events and dates. • Project availability Co gg ins&Sons currently can provide the proper equipment and man-power to are immediately mobilize and staff this pxoject anted for r immediate del very upon included in this proposal have been.priced and accou contract award. 9512 Titan Park Circle•Littleton,Colorado 80125•(303)791-9911 •FAX(303)791-0967 g§ § \ \\ v k �v R � z� \\ ev \ g 0 I i .. id /1 \ \ &\\# i7�lilli � # J #�&E 7737@7«ZJa=7 1 -/#£7\\ ƒƒJ }2 } 2 \ (. 2 ti \}ƒ) §¢!t;\)�/2 / (t,la,,|2 `!6 ;8`,-.- ¥�: ,�:�a ,!& r $$N|t§Mii= /§\ ;l5l(( \ a 2E,�■@7■E' e. tg£!\/2§|�ndo } l�.�! f �a:i�d®i§■2 `\k\(§/§§} 3 , 6 ifRS+ ��II 1 9•Y 00 00l 0 F'11111111.111111111111111.1111111111...0 'd OOYn0l00'A1n11oa NanN ��C SMlIIM 0f19M!.CHIN NaLLN �� _ R '_'_.. anon xi3m ssvnnons'" :,LEti IlLgO ... -nez A ea n'uc A= !1 'l'=r A- BON-P6-0L6 dI o00 u 3 NOILdD01 L03fO�Id NOSdWOHlI'Il0 e.� IF55j E_d 5.1 e06 § ' bat 156 tsff a Pe 41 PI 4 tu c Asa g` 5-,A w o gln 8a1 §J5 i s, i4 agt igq 4, 10 100 : 1 ° ~o CO RD_11s ,aa. ig0. w B'° O b Z O ( Q� J o� w 1 >"o _ w 0 0 3 �• JAW i o7,3o% I HWY-13_3— 0. <W� LL .& 0 I—J U o (n n— X o84i. r LL 18 W " E i } - 0 o z ,86.E cn�§ hW O� 0 0 Z ° z ti fl ( ) W N of Y Yf LL = N l' O14 ) o l ae, g r 8e e g m 1i ° 5 };g gY a aaaie feg,0a : 1 £ laa 0 n ' n 57'e 1 a e z @ a€ a ;. 6 °"��g a �g : g sdg 1 aF 6 i F. 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W� V/ h 1 Z zWa O F O ,---- ✓ A965 / °ii M o O J Z o Q J 0_ y3 Intentionally Left 1ank '1y Contract#267-2012 Rev. 8.25.11 jai Budget Line Item#110.54.96300.82900 .zofflaIN . 700tNir • • Project Contract# 267-2012 .ADDENDUM# 1 10/12/2012 SS CREEK Iv1ICROPILE WALL TO: ALL PROPOSERS ON PROPOSAL SNOWM�' Creek Micropile Wall, recently the Request for Proposals on Snowmass C es are required. This letter is yto our clarify clarifications or changes are proposal. If you submitted to your company for review. The following submitting p p, this Request for Proposals and considering m what is Thank any for reviewing the proposal documents or this letter clarifying have any further questions concerning co. itkin.co.us required,please contact me at Gerald.fielding@ P icro-Pile bar acceptable in lieu of the suggested 1.00" grade•150? • Is a# lO grade 75 M . Yes,the proposed bar is acceptable. " (no forms required,concrete in direct contact with the earth)of the • Will bank pouring As long as ro clearance cap c acceptable? and firm t ai bind,the kip clearance aepapaaing the earth and steel reinforcement an°rcement maintained,bank long will proper imperative a clea pouring will be allowed.concrete placelment.ls Imp • • beam exists before layout of the proposed Micro-Pile wall Please con firm that SGM will o'n�r�the middle and abench mark? - including all(4)corners, (2)p out. Yes, SGM will be providing the lay • provide all tree cutting/removal as necessary)orm gals ile installation?arytiong Will the owner prov tree trimming or to adjacent trees. Some mi the le installation,will be responsible will endeavor impact to trees. e to limit imp micropile installation,the contractor will endeavor to limit impact of micorpiles will be allowed with engineer's approval tll micropiles after engineer articular branches may be removed(cut) to allow after engin app required,p be removed above stump to $x allow contingency fee approval, Further if engineer r0val.All contractors shall carry• installation after otential approval. ree disturbance. • in their bid for potential confirm that the owner will provide all 3"1 party testing as required at no additional cost to the contractor. Yes,testing will be supp lied by the County. Contract#267-2012 Budget Line Rein#110.54.96300.82900 If, • Will the owner provide a water source for construction? Rev. 8.25.11 jaa The Mid Valley Metropolitan District will allow the co , so where is the source located? in Basalt. See attached for more information contractor to draw water from a hydrant • Can the owner provide a soils report? I • Yes,please see attached. • Will shop drawings be required by the contractor or will CTL Thompson be sufficient? • the shop drawings produced by As-built drawings by the contractor will not be required. • Please confirm that the proposed Micro-Piles do not pr require ' pe. The General notes refer to Micro-Pile Pipe but detail B 4/4 does not reflect this pipe. q • No pipe required in the micropiles • Can sheet 3 of 5(CTL Thompson)be issued in an Auto CAD No � drawing for our use? • Will reseeding/re vegetation of the hill side be required after pile installation? • No reseeding or re vegetation required unless contractor affects area • way. Pitkin County does not anticipate disturbance outside of right-of-way.outside of right-of- , 1 ' • Sheet 5 of S (CTL Thompson)indicates a 12'-0" hatched area. Is this area required to have all asphalt removed and backfilled with the Class 6 fill? these limits to reflect the area of disturbance for the Micro-Pile cap installation? Contractor to bid area as designated Can we reduce grated on sheet S. If contractor approach to limits project l' 'ts area of disturbance,please detail in proposal. • Additional information regarding traffic control Contractor shall include in bid 250+/-linear feet of CDOT Typ e 7 sa fety barrier with the Bid, if additional barrier is needed,please state such in proposal • Contractor shall include automated lights to be used during will require one lane for staging and construction. i rng the duration of the project that • i Is the contractor required to carry a contractors license in Piticin County Requirements for the contractor are as listed in the RFP, a Pitkin County contractor license is not required. • • What if any required No permits will need to be pulled farwoik work • within the Right-Of-Way for this project. Sincerely, ._- 21 Atab-___„..„... / __ County Engineer )AM Mid Valley Metropolitan District 0031 Duroux Lane, Suite A • Basalt, Colorado 81621 Phone: (970) 927-4077 • Fax: (970) 927-1017 Contractor Hydrant Usage Application Fitzsimmons Hydrant Business Name: Address: • City: state: • Owner: • • • Tax ID#: Contact person: Phone Number: Fax Number: • • E-Mail: Unauthorized use of District Water is subject to a fine of$1000.00 per use• t shall use of water from District hydrants exceed 45,000 gallons In no even of.water per day p er user. • N Mid Valley Metropolitan D�. 0031 Duroux Lane, S str�ct Tel (970) 927-4077 . ulte A Pax: (970) 927-1017 _.... .... Sum er it N dram Prot Atteritio� dent...._...... __ . ---------... t.----_.....___. .._..__....._....... . is OPEN to meter valve. -._.__:...._._.-.._. ..._........ .... 1. Log current meter reading in "Meter Start" Column of to book at mailbox as well as "Da „ s� and "Driver Name". #e , Company Name", 9 2. Attach pressure rated fire hose to meter fitting. 3. Open gate valve on meter already ON!) very SLOWLY (Hydrant is 4. Fill truck or tank. 5. Close the meter gate valve Very SLDIII/LY, 6. Take hose off of meter fitting. 7. Log "Meter Finish" reading in log book. 8. Calculate usage b from "Meter Finish„ reading "Meter Start' readin column. Ing and lag in "Gallons Used" 6. Please report any leaks or 927-4077. problems to the MVMD office Note: Every truck that uses this prevention device on it hydrant must have an approved • (Such as an air p ved Failure to obi gap) Regulations to al result Mid Valley Metro District ult in loss of privilege Rules & � and possible flees 5 Mid Valley Metropolitan District 0031 Duroux Lane, Suite 927-1017 Tel: (970) 927-4077 • Fax: (970) Winter Fire fig rant Procedures 1. Remove 2 IA inch cap. 2. Attach a gate valve if used (Ball valves are not aowed on the hydrant). Attach pressure rated fire hose to hydrant 3. Open the hydrant very SLOWLY. 4. Open the hydrant all the way. g. When the truck is almost full, close the hydrant very SLOWLY. When hydrant valve Is fully closed, back off the hydrant nu prevent damage to hydrant seat. 7. Remove fittings. alm of your hand over the nozzle. Ensure that the nozzle g, place the p has suction and is draining properly. 9. Replace the cap. i out the log sheet information in the 'mailbox with "Date ," "Company Name, 10' Fil "Driver Name," and "Gallons 11. Please report ort an leaks or problems to the MVMD office 927-4077. roved backflow have an app Note: Every truck that uses this hydrant uchfas an air gap) prevention device on it. Failure to abide by Mid Valley Metro District Rules f Regulations will result In loss of privilege and possible fines. CTL l THOMPSOH March 9, 2011 "' Qa0p4 , Pitkin County Public Works 75 Service Center Road Aspen, CO 81611 Attention: Mr. G. R. Fielding, P.E. Subject: Report of Geotechnicai Engineering Consultation 0876 Snowmass Creek Road Snowmass, Colorado Project No. GS05555-145 _Intro_duction This report presents the results of our geotechnicai investigation of a section of Snowmass Creek Road adjacent to the residence located at 0876 Snowmass Creek(Brothers Property) in Snowmass, Colorado. A vicinity map is k Figure 1. A slope failure which included a part of the south bound lane of the occurred on May 22, 2007. d Our investigation was conducted to determine subsurface conditions below the section of road that failed,to perform stability calculations and review engineering reports by others that discuss the slope failure. The purpose of our consultation is to provide our opinions as to the cause of the slope failure. We drilled exploratory borings to investigate the subsurface conditions,obtained soil samples for lab testing,and performed calculations to determine the slope stability before,during and after the slope failure. The geotechnical investigation included the following: ing; a) Site visits by CTL personnel, including John Mechiing, Edward "Ted" White and Dan Downing to observe site conditions, direct drillin of exploratory borings and make slope measurements; g b) Review geologic mapping of the site developed by the Geologic Survey; U.S.. 9 ic c) Drilling of exploratory borings to investigate the subsurface conditions. Exploratory borings were advanced to depths below potential slope failure locations; d) Perform laboratory testing to classify soils obtained during the drilling exploratory borings; g 234 Center Drive 1 Glenwood Springs,Colorado 81601 Telephone:970-945.2809 Fax 970-945-7411 ,a„ e) Perform calculations to determine the slope stability before,during and after the slope failure, Review g eotechnical reports by Lambed and Associates (LA) and an engineering analysis by iVlountain Cross Engineering,Inc.(NICE);and a summary of our field and g) Preparation of this letter press stteq�licy calculations and review of laboratory investigations, slofz reports by others. Site Geolo geologic mapping prepared by the U.S. Geological Survey We reviewed g slope failure occurred is (USGS). of a relatively large alluvial fan above The section of Snowiness Creek Road where the s op the soil is comparatively l soils deposited t teas rrace part Dung creek terrace gravel bench. Bedrock underlying complextively Y appears to consist of both Entrada Sandstone cing a chinle complex. Bedrock app Formation(siltstane and sandstone). The relow the south bound lane. bench; present bench, hence,man placed fill is p f=ield Investigation We drilled four(4)exploratory borings in the�v�stiga bound subsurface conditions.d to Creek approximate Road a bot n the Brothers she ny to a depth Tf o Poet•Boring ldcatid to boring locations are shown on Figure 2. Two borings were drilled e a e depth of s were drilled proximity to ti to a de reh h 60 feet and two boring re area, lied by L.A. e where chosen considering the depositional h aonrof borings p area, a slope failure It creek,the slope failure location and of evaluating p is lode investigations t field investigation as both n with the the purpose ando uts de the were chosen to sti ations in areas both in the fails der area and outside the failed area to check for rode y otenti o check for differing conditions. The location an p of boring TH-4 were chosen to cheec kohth investigate subsurface conditions in the area that failed to a depth below potential that failure planes. The location and depth to the creek, and adjacent to subsurface conditions comparatively did not vry significantly from conditions found in boring TA-of the depth property to the property. Borings TH-2 and Tthe depths r located in TH_1, The depth of TH-d was also chosen to determine if the from check that stability the ural gravel greatly fro check that the natural gravel surface did not vary -1 and TH-4,and to obtain more information b boring road coons construction.Borings r i borings TH of taunt with cobbles an purp also located relatively natural s nil close to ngs n techniques grave with th cobbles auger boulders. slid-st m auger were known l em consist r drilling g r boulders.Solid-stem aug borings through gravel, refbbal an doubles and be used a drilling technique that utilizes a pne a dol s hobble and r to break k the cobbles and boulders. The dilling system hole hammer to break up casing to be advanced with the boring to facilitate soil sampling. approximately 1 foot of Subsoils found in or exploratory base course above consisted of to 6 feet of silty to sandy clays asphalt pavement and ecs of wood was found in a which we believe is road embankment fill. A small piece PITKIN COUNTY PUBLIC WORKS 4876 SNOWM S CREEK ROAD PROJECT NO.OS06556.146 5:105O5656.O0Oi48-Lattats1G50$555 I45 G7.do / sample of these approximately these foot soils. B low9t the fill sandy borings TH-�i approximately had a more uniform appearance y clay or clayey and . The was an and boulder was found at�#oe6�et below the Toad surface Y sand. The natural and b explored boulder was f, and at logs 6 feet t below encountered Natural the maximum with cobble h are presented on Figures 3 and 4. the maximum depth red in our exploratory borings Ground water was found at 15 or 19 feet deep ground water surface is related to water in Snowmass Creek. table was found at 43.6 feet in our TH_1, in all of the borings. This A lower ground water Laboratory Testing Soil samples obtained from our borings were returned to our 1 field classifications Were checked and typical gravel,cobbles and boulders in the soil made it not feasible to o laboratory w samples selected for pros here samples of the natural gravel with standard sampling equipment. testing. The retrievable soil obtain representative particle size was about 1.5 Inches in diameters The maximum Atterberg Limits testing and an unconfined compression test a the site. Atterberg Limits on the fill were a liquid limit of 26 percent We performed index e,9 percent. Unconfined compression testing was on the upper fill sous at index f9 pe c our Unconfined p Cent and a es of the gravel sand and 4 to in 16 percent silt and on clay fined 50 to particles 8,7ra elf. Samples percent cent said percent gravel, 15 2to 00 ie and laboratory data and our experience indicate that the gravel soils percent possess high shear strength. g 200 91eve). Our g g Laboratory oils aE the site The Nature and Cause of Movement ry test results are included as Appendix A. We believe that the section of road that failed in 2007 had configuration for many years. The creek water su surface. Water at this depth below the road would not significantly been at a stable the surface. We says no evidence ep depth to of slope creep dnot is 2 i tc 22 ly a below the road of gn+finhill affect stability d on ground observations. p(Very slow downhill movement)based of horizontal movements or rotation that wosuld be associate did not observe significant erosion that would ld be toe that slope did not show evidence e been under cut. associated with creep movement. We would indicate the slope has The road was constructed by cutting into natural slopes bound) lane of the road and placing the excavated soils as fill along the downhill (north (south bound) lane of the road. it is reasonable to assume the . and grubbing was not accomplished to create a flat, horizontal I g the downhill and grubbing ing Placement of fill on accomplished to that are not nearly t significant on nt which to a potential slide ptahe, FiIi soils were likely early fiatand platform result in placement.Fill soils and natural sands and clay are significantly natural granular sands, gravels and cobble we not well compacted at the time of e found below thesessailsang than the We did not have documentation related to road construct' road has been providing a road has s structural provl in g a good level of service for many construction for ant review. The related d to of road above or below the not observed In.the repaired Significant section, orr the pairedfcksWe P1TK{N COUNTY PUBLIC WORKS The majority of cracks we 0076 SNOWMASS CREEK ROAD S:GSG5a59.oloti4613,Leh q I Sa5555 145 L1.0oc s"—Z e of distress that is observed were related to edge cracking. Edge cracking Is a type This that is outer edge of the parallel r to,and usually caused by softening of the subgrade near the edge of the of distress is typically a cracking is common in asphalt on roads pavement due to moisture infiltration.Edg built on cut/fill benches with steep out slopes and relatively narrow shoulders.passed It is unlikely that the failure plane significant a length.As stated,these soils are through the natural very granular re soils for a and our subsurface we believe below comparatively very strong relative to the soils above.Based on subsurface conditions historic photographs a wed the rope,site failure fe il and the clay soils gravels. a wedge sloped failure of the fill soils atural sand and clay and clay soils occurred. is The interface between the fill and the n path of I the most likely slippage plane, This interface is pf also forces resistance te for water to which i presence caused the slope failure. een soil particles which significantlyo the soils likely caused of the soils. The presence in the interface presence of water flowing We modeled the failed section °ems from ot graphs of the failed from ares and laboratory test results.s. B slope o measurements, this sur laboratory test results. Based on this inf��natural gravel, and boulders the n t pra practical a to t the large diameter of t ractical due to the large diameter of the Iillichael Duncandand Stephen G.Wright not p Slope Stability by texti`Soii Strength and S1°p used by o chock shear strength values. The authoa�s�ab plod!The text widely in slope limit t analyses in the United States upper li engineers analY a stability as a reference.Th h shown an (head scarp)involved ofvhe sl the fa lure we of slope s d to define soil aph s strength on (head scarp)of the slope failure we modeled is based on the photograph at Figure factor f Our calculations e y (FOS) of 1.0.included back-calculations forces tendihe at a fa ctor of safety (FQS) of 1.0. A FOS of 1.0�equal t ttietr resisting where the driving forces tending to cause slope failure are q t slope failure. This is the condition that analysis, e assumed water from the represents less P ditcatur the the slope at time soils sfallow. For this ditches. These cases represent ditch saturated the upper soils below the road. then calculated the stability of the road subsequentto no available water from irrigation the b before and after slope failure conditions re nd after atur atio not the soils below the road. We determined a FOS of 1.4 befo Documents Reviewed Documents provided by You and other documents were reviewed as part of our investigation. These documents are listed at the end of this letter.Comments relative to the documents review are below. a) Review of Lambert and Associates work product Geoteehnical Engineering Comments, Project Number M10029 GE Dated February 14, 2Q11 PITKIN COUNTY PUBLIC WORKS 0875 SNOWMASS CREEK ROAD PROJECT NO.CS05555.145 S:1GS05555.000114517.Lottof510505555145 11.doc s3 Page 1,Paragraph 4 F "The river is close to the fill slope toe in the vicinity of the failure elevation of the surface of the water in the river will encroach into foundation materials supporting d repair. The soil materials at a similar eve ionh The weakening ing inf uel infiltrate into saturate the the fill materials erialsat Is discussed below. adjacent nt influence of river rises saturating phreatic surface, which is the free water surface within the soil ma When the water level in the river rises the that change. The phreatic surface within the slope fill materials ill water from the river and from the ponded wateragfjaCent to the roadway materials, will track wat above the roadway. be Influenced from the subsequently raising the Each of these will add to the subsurface a afar lavel g► phreatic surface." Response: The toe and lower part of the road embankment to the granular soils,not fill sails. Fill is located at the to 6 feet thick at the slope crest. The 100-year flood elevation is 20 to creek are natural road surface, based on Flood Insurance Rate Map of the slope and is approximately water level and phreatic surface associated with the creek 22 feet below the water that would result surface in saturation of soils that reek information. The co an significant degree. The phreatic surface associated ee water would not rise to an that are supporting the road to a based on the creek water level and location of water we found in our borings. Pohded water adjacent to the road ociated wrth the river is relatively flat "upper"ground water level which would affect the stability of the road. creating d water did not add to the lower ground water related to the creek in a me tY the road. The ponded Page 2, Paragraph 3 meaningful way. "Our field study consisted ofadvancin four g mall,4 inch,diameter continuous flight auger test borings in the south bound lane of the roadway. materials encountered and obtained soil samples. The logs of the test included in the appendix We observed the shown on the boring lcations figure included with this test borings are pproximate locations of the borfngs are Response: report.,, The Lambert and Associates(LA)field investigation was note for slope stability analyses. Exploratory borings by LA were advance depth of 9 feet below the road surface. The cross-sections on page s appropriate show failure surfaces to as deep advanced to a maximum found below the u p as 36 feet below the road Surface. the LA report we pounds much tipper 8 to 9 feet are dense sands and The soils which greater strength than the soils used in the LAlstaabili y calculations.l which Additionally,a circular slippage surface was evaluated b for a sand, gravel and cobble soil.The deep circular failures show eLAprt would have resulted in blockage of the creek with soil by�which is not appropriate failure; this did not ha I and fallen trees from the slope happen. Page 2, Paragraph 5 "The samples obtained during our field study were returned to testing. Several samples were tested forsubgrade soil classificatio n characteristics. Two samples were tested for stren th , our laboratory for 91 para►neters the fnternal angle of friction and PITON COUNTY PUBLIC WORKS 0,376 SNOWMASS CREEK ROAD PROJECT NO.GSOSKS5•145 SABS06555A00114513.{,eft,r,G$O555514S L1.doc coh esion, using a direct shear strength test. These test results are presented in the appendix to this report." Response: LA states that a permeability test was performed on soils collected from exploratory s it is stated that test method ASTM was "Stan The soils exploratory boring Constant Head)" test Method for Permeability of Granular Soils size particles. collected from individual borings wersimilar �each other silt and jalaboratory soils rates. The average of the tested soil applicable for the No.200 sieve). ASTM test procedure p art cue not Test method or so D containing more than 10 percent silt and clay sized p of Saturated 5084"Standard Test Methods for Wall Permeeameter�should have been performed to Porous Materials Using a Flexible determine hydraulic conductivity. Page 6,Paragraph 3 " our opinion that it is unlikely that the transient an that occurred d and subsequently surface runoff event !t is au P of the roadway caused the failure. It is our opinion that the repaired was most likely the result of a long term marginal stability fill." trigger the Response: The is highly unlikely that the available ditch water did not trigg failure reducing the resisting force at the bottom of the slope failure. The slope had been stable until subjected to this water. A slope ft P s slope that which occurred th driving force at the top of the slope.The saturation of edincreasing d In loss of frictional strength and therefore,resulting reduction in soil slope failure.g The soils loss force of strength reduced the resisting additional water was the triggeC mechanism that caused the slope failure. w of Mountain Cross Engineering, Inc. work product for Ms. b) Review Mazzucca,Bayer&Carey,PC "Board of County Commissioners of Pitkin County, Letter regarding B District Court; Colorado vs. David B. Brothers, et at, Pitkin County 2009CV85, 1�,2011 Dated February Page 3,Paragraph 2 "permeability permeability. Lambert and Associates The performed dflow test water through native soils ils to is called p o permeability the a the snare ormed a#est an the native sails to � The laboratory platy and the results this given report dated February 14,20 enty ft B) e t was n.7 their rep was of permeability 0)centimeters we calculate pulate that the water would have intruded into the SC Road rate of pery we talc (base course and sub grade soils) as follows.'* 5.7x1014 centimeters/sec. = 0.0038 18.5 hrs '" 60 man.>hr. * 60 sec:/mitt- centimeters" Response: Mountain Cross Engineering,Inc,(NICE))incorrectly m defines of a so s ability as the rate of flow of water through soils. arm� PITKIN COUNTY PUBLIC WORKS 0878 SNOWMASS CREEK ROAD PROJECT NO.GSO$555-145 S:1 GS05656.040114515.i_eti0s1G805555 i45 Li.dnt J � fy to transmit water.The distance water travels, that flows through a soil cannot be calculated without knowing the hydraulic avels velocity of water or the volume of water The hydraulic gradient is a measurement of the pressure the soils. Pressure is usually defined as a pressure head. Pressure head era case. like the slope failure being evaluated is the difference in Bushing the water through path the water flows. No mention of the hydraulic gradient is made in cad for report case or is included as part of the calculations by elevation in feet along the Y MCE, n the MCE report The value of the permeability determined by calculations by NICE was determined by the wrong test method as discusy used e. The permeability of 1 x IU'B cm/sec is not associated with the type a this site.This low value of permeability is normally associated with clays discussed abogh, Plastic limit. The sails tested classified as Sc based on the Lambert f soils found at of 1 x 90�to� x 90�cm/sc Would be expected for this soil with a high referenced the text"Construction Dewatering and Groundwater Control'',testing. A value Powers, Arthur x Corwin, Paul C Schman and Walter type(see Appendix C),We Considered experts in Corwin, field of seepage C Sc ge anal de ntrot",bu authors J.Pstrice E. Kxt is Toe mly u and reference in seepage analyses; The calculations band the text is a commonly used soil condition below the road. An isotropic condition is where Y MCE also assume an isotropic exists in all orientations. A homogeneous earth fill dam is an exam F isotropic condition is a reasonable assumption for seepage analyses.The generally P and the placement of the soil used as fill for a dam is closely controlled d where an there is a high degree of uniformity of the fill. The subsurface he tYPe ofure location consists of various layers of different soils and the ante d and therefore, at the various soils, An isotropic condition does not exist at the site, Water kely flowed at slope failure various rates through the different soils and the interfaces daces between the Page 5, Paragraph 3 between thhe soils, "In Exhibit 3 of this report is an aerial image that shows the hillside r down to and contributes runoff onto the Brothers approximately area that drains aPP ort y 28.08 acres(this is not to be confused with the area of the.Brothers y which is approximately Y This area is Pr these p t W is is ro the p 37 acres). The volume of water that could have fallen on I weather 8.08 acres was approximately 0.2pprecipitation events on May 2,2" deposition testified that the Brothers have right to 0.75 ater.2007at the Aspen deposition Mr. Weiser in his @ pg. 68)but it is our understanding from Mr. Gordon and Mr. Bra that amount rarely if ever flows. But lf that amount had flowed ont (e ditch for an estimated five hours it would have mson The volume of of 13,500 00 cubic ditch water that could generated fed a volume of 9 esOO cubic f.2" precipitation event was 1.5 have landed on the 28.08 acres from flowed into the roadside ditch had the Stewart Ditch delivered a 0.2;, times larger than the amount of water that could have cfs for a period of 5 hours, The point being that natural precipitation is generator of water with a more likely liverepl the Brothers full 0.75 considering the poorly Y potentidl ditch." saturate the road especially l larger p Y maintained roadside ditch.,, Response: We are not clear if infiltration of water into the ground in the above NICE calculations. The volume of water that would would generally be e was considered equal to the total volume of water available less lthe tvo volume of water lost by infiltration, infiltration is in Part a function of the intensity of a PITKIN COUNTY PUBLIC WORKS 0876 SNOWMASS CREEK ROAD PROJECT No.GS05555.145 sACS6s553.00011.t6{7.LattonAGS05555 145 L1.dn r 6 i precipitation event. Less infer intensity storm. We would expect a greater amount of infiltration will occur in a lower water from a loss of control of flood irrigation water than from a precipitation event. ation MSE assumed a time of 18.5 hours in their erne potential ul tion,he w iverba time period of 5 hours was used to calculate the p the Stewart Ditch. We are not sure of the reason for the discrepancy. Summa and Conclusions We reviewed reports that provided evaluation of the slope i failure by'LaCass and Associates (LA), a geoteehnical engineering company an flunt y n these Inc. (MCE), a civil engineering company. reports. The soils below the road assumed ve investigation by LA was not suffici nt to that we found in our deep borings. The fie{dn support the slope stability calculations incorrect test testing method. The testym permeability method used testing performed by LA used the for relatively clean granular soils;b eLAo �these��were and therefore the the permeability test results provided Y MCE results are incorrect. borings to We preformed a field investigation ane that included laboratory ry test g to check depths beyond potential slippage planes. classifications. We performed slope stability analyses including several potential failure surface shapes. Our conclusion is that the slope that f i satwas a relatively thin wedge of soil. The failure occurred when upper from water spilling into the ditch and onto was reduced from the saturation of the soil from irrigation.The soil shear strength w The loss of soil strength resulted in an unstable slope and failure occurred. We appreciate the opportunity to work with you on this project. If you have questions or we can be of further service, please call. Very truly yours, CTL j THA17( �! G j,/+(/■r'/J/J/'/yr,/ech�irig;.}��E;::•,c;,';. ': , rich Mal)iager 3 al JM:c cc: Via email to Gerald fielding itkin.co.us 076�SNOWM SS CHEEK RROAO PROJECT NO,GS05555-145 S;ICiS05$55.000114613•Lcttor\1GS05656 i45 Ltdoc 7 References "Board of County Commissioners of Pitkin County,Colorado vs.David B.Brothers,et al,Pitkin County District Court;2009CV85"letter by Mountain Cross Engineering,Inc, dated February 14,2011. "Geotechnical Engineering Comments 0876 Snowmass Creek Road, Snowmass Colorado"letter by Lambert and Associates, dated February 14,2011 "Bayer&Carey,PC Pitkin County V, Brothers Borrow Ditch Plan and Profile"by St. Joseph's Consulting Engineers, LLC, Project No. 16,000 "Soil Strength and Slope Stability" by J. Michael Duncan and Stephen G. Wright, Copyright 2005. "Construction Dewatering and Groundwater Control",by J.Patrick Powers,Arthur B. Corwin, Paul C Selman and Walter E.Kaeck, Third Edition, Copyright, 2007. "Geologic Quadrangle Maps of the United States, Geologic Map of the Woody Creek Quadrangle, Pitkin and Eagle Counties,Colorado" by Val L. Freeman, Published by the U.S. Geological Survey, 1972 "Flood Insurance Rate Map(FIRM),Pitkin County,Colorado and Incorporated Areas",428 of 1050,Map Number08097C0428D,Map Revised October 19,2004,Federal Emergency.Management Agency ' ASTM D 2434 "Standard Test Method for Permeability of Granular Soils (Constant Head)", 2010 Annual Book of ASTM Standards,Section Four Construction, Volume 04.08 Soil and Rock(I): D420—05876 ASTM D 5084"Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a FleXible Wall Permeameter",2010 Annual Book of ASTM Standards,Section Four Construction,Volume 04.08 Soil and Rock(I):D420 05876 PIYKIN COUNTY PUBLIC WORKS 0876SNOWMASS CREEK ROAD PROJECT NO.0306556.145 SAGS05655.000%14511 Lttiors1GS055551951.1.do 411i1) T SCALE:1'=5,000' . , t,,,,,.,-,,-,--.,:....zi.,,,,q,....., ...;„7,-: -,tr.-- ,,,ti,„ ys,,, ,,,,Or ,.. ' P'.- -,,, ii!'fft..44..'gr, „." .../1 '+` •,,L, 1 14.0.• j 0 , . ,,,,...,:. .L.Sa .,a, f. Ii. 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'v ‘,, ,..•i Wr i'' Apilli,:it N- ilk ,7 -,<'.,,‘, . ,,a.i.;•., ,.1". r L ''' . r pii‘ -- --- ed , , jr---,, -,,„i ......, _,- , . , - , ---,,-,-*/--,";•r t -''i'" --- -__:::'-i;: i L4.-•,0.4" 413`''..,,3 '1" -4 •gt„- ,.• i: .^L-I" • •or', . '1\ ''' ,,f-r: yr .:,,i-,:,--,, ) ç •,-,, ,- .- ,if ,, Y.• A Vicinity Map PltkIn County F, 87B Snowrnaas Greek Road Flg. 1 0 Project No.GS05555-145 r / NOTES: 1. Borings were drilled in the southbound lane. 2. Locations of exploratory SCALE:y e�/�� borings are approximate. SCALE: 1�=iW " I 4h e� r `!1 1 P Locations of Exploratory Pltidn County Borings 878&lowmass Creek Road Project No.GS05555-145 Fig. 2 7 TH-1 111-2 TH-3 TH-4 • 0 0 — — P Fans as r.• _ Failure lt Plane e• q5 5 8/12 ;(3'a _,_:CSI 5 --- :;7, 25/12 g °”13/5• 10 a.• �c� o� — p 30/Bounce 1.N.S0/7 ae 50/Bounce :um 30/Bounce °aP • 00 .. �� O ; a..(5' 0, :6' :CS 15 — 15 a�• 50/1 0150/9ounce o 3. 50/Bounce— 50/7 V D V 3� V so — �(�50/7 — •1: 50/Bounce 20--- 20 — — eMN 50/6 — ap 29/5. — ,,, 5% eQ 3• �J — a�4 25— o 25 �p 50/5 ;pa 50/4 —1 t. gib. 3 • ��' — s r •D 30— $ 0 30 !I 50/2 till 50/3 — o(5' :D' $a — . P 35--, 35 wa 50/3 •_•13 50/6 T. e(o — .p a. �O�, 40- 40 �. 50/2 1(.50/1 — • p. .p o.. — o °sD P 45--- 45 ^ ,� 50/I °q 50 ' 50/Bounce !eU ► 50/Bounce 50— 55— 55 • SUMMARY LOGS OF EXPLORATORY BORINGS Fig. 3 Project No. GS05555-145 4 I k it 9 § § & El • § s, #0af /i3 21. a1 A- §r 0.s.■ -sa -J, gP3 A" %LA §.F a |� 2, ■ ./ ?§� a- J /§% I■ am r � ' • /E ■ $ X 111 X a.E 2■704 IE 'l .off A.• ■�I. • 0 ' =1CI 3 =ca�k CA a�9iP 31§{P o al §a.£a.tn §�/�7 U °ƒ Ia§$ 2 i■ 0 .�i�it E.0 00 a �©� J1 £ƒ-*Ns 6o-- - &-§ a,a� . 0 7 w 0 2 2 U !01 N § § °fp $2 E a2§`;g -3 QM. v2 ;gig © }�}� �, w) (18 ■ }k§§$ octl 31 f%f ■ E__ �■ 2 • �& �'3 kg §B % a. 'P 4 . / . .. . . . ..... . ... APPENDIX A • LABORATORY TEST RESULTS PITKIN COUNTY PUBLIC WORKS 0876 SNOWNIASS CREEK ROAD PROJECT NO.GS05556.146 S:1GS06556.000114613.Lettors1GS0515514011 Append ces doc t3 • I HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR, 7 HR. TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN.15 MIN. 60 MIN,19 MIN. 4 MIN. 1 MIN. '200 '100 *50 40'30 16 '1D'8 4 318' 314" 154" 3" 5"5" 8° 100 r^��..� .�■�rr�a��■� .� ..�■�■••^�� —0 r� GLZ¢� �1 '�I �Imom..m 80 E Sample does not include ""—. — �:,=. _____7° so ..particles with diameters --��---�- ""' = 20 Nor 70 larger than 9.5 inches. M = E 311 Fc 50 = ==44T' _�=>Tl.50 l; 0.40 = WI.r �r�r.u..uW. .r.�rrrII �•∎r� ==.1 1 IX mom. ' rr_.� —= mi r�r.. mi fi0 311 ar�N�Irr�aw.—�i—� ..w��,r�w..�i ..� ^o—70 ∎.—.. __=====I∎∎∎•=1111°11'.�_ '■..._�C 0 —10 �, =PP' :�∎.��■■ ∎� _111Mr p ��..}. . ='.�'==■:�. �r�..n"�CR=lo r=1�r...`r =r�=_E 1110 .001 0.002 .005 .009 .016 .037 .074 .149 .297 042590 1.10 2,0 2.38 4.76 9.52 19.1 36.1 76,2 127200 • DIAMETER OF PARTICLE IN MILLIMETERS CLAY(PLASTIC)TO SILT INON-PLASTIC) SANDS GRAVEL FINE: I MEDIUM ICAARSE I FINE I COARSE l COBBLES Sample of GRAVEL,CLEAN TO SILTY(OP,GM). GRAVEL 64 % SAND 26 % From TH-1 AT 20 FEET SILT&CLAY 10 % LIQUID LIMIT - PLASTICITY INDEX I HYDROMETER ANALYSIS r SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN.19 MIN. 4 MIN. 1 MIN, '200 '100 '50*40'30 '16 '10'8 '4 318" 314" 1W 3" 5"6' 8 0 1 r+ •■■_-..-.- �w.N�r.r. 8° =Sample does not include —...,_.--._iA.== == 69 E particles with diameters ==========.1== -EE 20 (9 70 ■larger than 1.5 inches. .=======Cis =_=: 30 e �f-�� L�=r. CJd��=C=�4a 69 C. .. VI 00 . .ter—+r.r��_..rr�i ..��.'�rrr i�w-..____ L�60 W ..ER" il. ==...m.I.■=» ==.. ...mss= =miwm m30 =. __ __ =70 ■w�.�� ;C=...�.�..�. =ACC;:_�"'�C�.�..ACC 69 211 �sII=.•∎ �l� .�a�__ ____rr-rrw.. ,.-_..�∎ aril 10 ■■••INIMM■I■1•111M aMIN . • 90 IMI.....=1∎r.-r..11■11=1■=1•11■11■IM..I■S fl I.WWI rnn SF . .fl 100 .001 0,002 .005 .009 .019 .037 .074 .149 .297 0.42.590 1.19 2.0 2.38 4.76 9.52 19.1 86.1 76.2 127200 DIAMETER OF PARTICLE IN MILLIMETERS CLAY(PLASTIC)TO SILT(NON-PLASTIC) SANDS GRAVEL I y FINE I MEDIUM I COARSE! FINE 1 COARSE I COBBLES Sample of GRAVEL,CLEAN TO SILTY(GP,GM) GRAVEL 53 % SAND 38 % . From TH-1 AT 25 FEET SILT&CLAY 9 % LIQUID LIMIT PLASTICITY INDEX % PITKIN COUNTY Gradation - 876 SNOWMASS CREEK ROAD PROJECT NO.G805556445 Test Results 5:1GS0 8555.000%145W-CalcslG505555-145.GradatIonids FIG,A-1 4,, y HYDROMETER ANALYSIS I SIEVE ANALYSIS 1 25 HR. 7 HR TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 16 MIN. 60 MIN.19 MIN. 4 MIN. 1 MIN. '200 '100 *50 40'30 16 10"6 M 818' 3314'■�1W 8` E 6" 6`0 ion ....� —a=Cerr' .e ".0 r�,,r�Ens 90 a Sample does not Include =�= °ir===1D „=,.....rte..^...=ra��C Cam .=20 60 E particles with diameters -----" — �r lar larger than 1.5 inches. � �� M -=—� 70 ..� g ��„�rrr.ar.��∎.i.��.rrr�rrr•a arwrrrri..' IMINI∎ION 30 x ■ rrrrr�r....r. ...�.. ==r..== =rrr��"�Mrirrrrrrr�r�40 6 .∎•11•• �.r�w t�° aMMF'"MM �raaa a �_a-aaa "" 50 s s=__∎r� =Q irr�r. g■ in ao ■ =° iEMiir'�-' W■■ Ea= .'AM-`E_30 aC .C�".SC= ....33.33.3.■r...r.=70 `"'-MCP=C 3333.3.∎rrr� �.r3.r'I.'∎ ��.33"r�� 33.r3r=33∎,.... n.rya. ■�r..1�.....".....r.n.IM.��r= 10 0 � = C:rlf∎== C" C C ="la 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 00690 1.19 2.0 2.38 4.76 0.52 19.1 36.1 76.2 12;62200 DIAMETER OF PARTICLE IN MILLIMETERS I I SANDS GRAVEL CLAY(PLASTIC)TO SILT(NON PLASTIC} 41 FINE I NEDNM I COARSE1 FINE I COARSE I COBBLES Sample of GRAVEL,CLEAN TO SILTY(GP,GM) GRAVEL 79 % SAND 16 % From TH-1 AT 30 FEET SILT&CLAY 6 % LIQUID LIMIT PLASTICITY INDEX HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 45 MN.16 MIN. 60 MIN.19 MIN. 4 MIN. 1 MIN. '200 100 '6040'30 16 10"8 4 818' 314' 114" 3' 5'6" 8 0 100 ■•■•■•.•■r■r....■• ■ ■■■eMel ---r..=MN= — ==C==C==C-C!_�C=10 .3---- —r- 9° B Sample does not include _�__== ==.,=�____ 6° =particles with diameters i.. =-0==C=ACC- =�� 70 s larger than 1.5 Inches. M==—====.====M'--- -.2.----a3,__ Z 150 .�"'�' .w+rr..��r�., ∎. .∎. ..r.. ........�...r... r.., ��..=...... g �33� 33 =11∎1....r■ a— '.r " .'''=�C=� �./-:.�.�C.=�.'....w∎CCC_60 E6 a.a° 1_____ =111=I��at•C� Sian,=�CCCC�C=_r. a mn ..•.^...MM■.CCCi∎∎1101 .1��{.....r3I��■3�.r1.. . `CCU-O 80 20 3r�.3∎11•∎ r.r�..rr�=rte∎��_4rr..�r ■..1111..�.nrr■2rr• MIMI r1■.3ri 0 .'.i..■�ar..w■.e..Mf r1•r=.n.r.r.rr�snr��.rr.�.r.IMrrs+n.a∎r_str�r+∎3311 00 .001 0.002 .005 .009 .019 .037 .074 .149 297 0.42690 1.19 2.0 2.36 4.76 9.52 18.1 36.1 76.2 12t62 00 DIAMETER OF PARTICLE IN MILLIMETERS 1. SANDS GRAVEN. CLAY(PLASTIC)TO SILT(NON PLASTIC} FINE i MEDIUM (COARSE FINE I COARSE (COBBLES Sample of GRAVEL,CLEAN TO SILTY(GP,GM) GRAVEL 57 % SAND 33% From TH-1 AT 40 FEET SILT&CLAY 10 % LIQUID LIMIT PLASTICITY INDEX % PITKIN COUNTY Gradation 876 SNOWMMASS CREEK ROAD Test Results PROJECT NO.x306556.14S FIG.A-2 SAGS05555.006114516.Caic.0GS05555.145.GtadaOcn.xls 4 f1 lr • 1 HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN.15 MIN. 60 MIN.19 MIN. 4 MIN. 1 MIN. '200 "100 "50'40'30 "16 "10"8 4 3/8' 3/4" 1W 3' 5"6" 8" 100 �._.. _0 90 _Sample does not Include ==-11--=--= --=-1 M=C∎1° 30 --particles with diameters MEM.M M � �__ 2° 0 70 B larger than 1.5 Inches" ..��-.. _........_,,.._�.r ,,,.,-_,.-� z ._.�1.;=30 z■_ r� .. Mme..._=-- a a 60 n' M�EE KSM—i MM i F Au =.-• "40 0 O.to -'... � � III.�C111=11 40 .�......■ ...��..��.. =ice=E= Imo_-± ___ ` MIM _MM_ 30 ��i��.��,,,....,..,-= ��.�..�-�=rte.��•rr...-rrr..r.∎j_∎rr_.,..r.,•..�__ -_ 20 ©= " _. r—� .�.� ... "r`,.." =._�C 1..1 80 .�r��wwr_•�r..�_.�r••••_ �� == 0 ==�IN:=Ar.'1===i——=...""1==r--===a =.'..' r.:---..��.'.:.Ea 100 .001 0.002 .006 .009 .019 .037 .074 .149 .297042 90 1.19 2.0 2.38 4.76 9.52 19.1 36.1 78,2 12�5Z200 DIAMETER OF PARTICLE IN MILLIMETERS CLAY(PLASTIC)TO SILT(NON-PLASTIC) i SANDS GRAVEL FINE I MEDIUM I COARSE FINE i COARSE I COBBLES Sample of GRAVEL,CLEAN TO SILTY(GP, GM) GRAVEL 66 % SAND 22 % From TH-2 AT 10 FEET SILT&CLAY 12 % LIQUID LIMIT PLASTICITY INDEX % I HYDROMETER ANALYSIS 1 SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 10 MIN. 80 MIN.19 MIN. 4 MIN. i MIN. "200 '100 "50"40"30 "16 '10'8 "4 3f8" 3/4" 1'/z' 3' 5"6' 8"0 100 __. NM MMi��MIfiiilJ'Iil•i� 90 Sample does not include ===M1.I 1= =l��_===1Q 60 =particles with diameters .0=�� ==�I�5 _E=20 .----- 70 larger than 1.5 inches. =======lea==- 30 _ ll �© � � T- � � '40 a 60 = � __ ' �40 � = =CC®=C== ...�.�..M s°== ==_ ==�C'GC ..C∎ 20 r—._r_ �,.. =r..�-rrrr_r_-rrr■—.- _� 80,..AUNINAMMAINMUOI,■11X/i/m/MOIMINASIUMMiturnm 10 .._ • , ■•_r■. MMrr_•.�r• 11 ..� I.a.r.rrr■r:.rrrr:•rr•rrr•w. =-: 0 ..rr---∎ ran_.r.>.w...irrr ■_>_s' =/rr..- =>. 1t. M.rriI.._7 >.+i—.r• =M i00 .001 0.002 .005 .009 .019 .037 .074 .149 .297 690 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12762200 0.42 7 DIAMETER OF PARTICLE IN MILLIMETERS CLAY(PLASTIC)TO SILT(NON•PLASTIC) SANDS GRAVEL FINE I MEDIUM (COARSE FINE I COARSE I COBBLES t Sample of GRAVEL,CLEAN TO SILTY(GP,GM) GRAVEL 67 % SAND 29 % From TH-2 AT 20 FEET SILT&CLAY 4 % LIQUID LIMIT PLASTICITY INDEX % PITKIN COUNTY Gradation 876 SNOWMASS CREEK ROAD PROJECT NO.GS05555-145 Test Results S09905555.000114518.Catts1GS05555.145.GradatIonxls FIG.A-3 ir L HYDROMETER ANALYSIS l SIEVE ANALYSIS 1 25 8M R. 7 HR. TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 46 MIN.15 MN. 60 MIN.1 B MIN. 4 MN. I MN. •200 `100 `50`40`30 •16 '10'8 •4 316' 314' 1W 3" 5"6" 0 100 �. 9D =Sample does not Include ,_,r.....===11="•— 50 El particles with diameters -. r� -- -: 20 ,�' M it I� z 70 °larger than 1.5 inches. ° =--.� �___30 �� .__..w�—n— =I. ��=E.i MI ��r�r.��r —=rrrr..r=== —.r....-••��—rte- .="+�.=.— 60 1■11•1•Mul a. 40 ,i...r....�� _C " S.� C..�E' � B_ � EC,S sD C :. . ... ... ....r........... ..�...n... ....—=4===1. 70 �. :_......=1 ...=...r. �� . rte'.� C�:;� �..1•∎.......r I.1“ ....__ .- rte.∎MIN...∎•∎■■■• _Z= 10 --'r=r...= ..ri....=== = ==.r_•=:= 0 �=== N=.=�4.ra relma..G".....=t� . ' r.�..l�lr == ,.�rv.�:=�i.` 100 .001,17�C•�..r....+ . .3 001 0.002 .005 .009 .019 .037 074 .149 .297 0.42bg0 1.19 2.0 2.38 476 9.62 19.1 36.1 76.2 127 522DD . DIAMETER OF PARTICLE IN MILLIMETERS 71 1 SANDS GRAVEL CLAY(PLASTIC)TO SILT(NON-PLASTIC) FINE I MEDIUM l COARSE] FINE I COARSE l COBBLES Sample of GRAVEL,CLEAN TO SILTY(GP,GM) GRAVEL 73% SAND 21 % From TH-4 AT 10 FEET SILT&CLAY 6% LIQUID LIMIT - % PLASTICITY INDEX -% L HYDROMETER ANALYSIS i SIEVE ANALYSIS 1 25 FIN. 7 TIME READINGS US.STANDARD SERIES CLEAR SQUARE OPENINGS 45 5 MIN. 15 MIN. 60 MINAS MIN. 4 MIN. 1 MIN. "200 '100 •50 Aa'30 '18 "10 11 '4 316' 814 1W 9" li" 0 10D err.^∎rr.1■■�r■�w1■=�.�_...�.�.��"."�.r��_^� amp e •oes not Inclu•e °, == , 60 ' •articles with diameters I==;===== A===_20 C=rr�rr.- ======11,7===.11=2=30 010 - 1 1. i tl (I' ==IN ==rG�_= = da — .......�rr...i= _ ............ ii 40 60 E 45 -�..r�. ∎�■ r:01=1∎ .... _∎�E a 21■10.NM �s—-- 1 .11 so ��M...�=;_ .rte 20 �w.... '...,=== —.... .====== ==____ 10 1....•..■l■I..I...I.M,1.■.�•■■111..II........M■. =MN=MINIM • r ∎:■r... .. . . I .i.■ 1=••∎∎=i■MImrr.� 100 .001 0,002 .005 .008 .019 .037 .074 .149 .297 0 4690 1.19 2.0 2.38 4.76 9.52 19.1 30.1 76.2 127162200 DIAMETER OF PARTICLE IN MILLIMETERS r SANDS GRAVEL Il CLAY(PIASTIC)TO SILT(NON-PLASTIC) FINE l MEDIUM (COARSE FINE J COARSE l COBBLES Sample of GRAVEL,CLEAN TO SILTY(GP,GM) GRAVEL 50 % SAND 34 % From TH_4 AT 25 FEET SILT&CLAY 16% LIQUID LIMIT % PLASTICITY INDEX %n PITKIN COUNTY Gradation 876 SNOWMASS CREEK ROAD Results NO.6805555-145 FIG.A-4 SAGS05555.00D114518.CaI6sIGS05555-145.Grada6onids 67 • I HYDROMETER ANALYSIS ) SIEVE ANALYSIS I 26 HR. 7 HR. TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 46 MIN.15 MIN. 60 MIN.19 MIN. 4 MIN. I MIN. '200 900 '60'40'30 '16 '10'8 4 318' 314' 119" 3" 6.6" 8" 100 .11.....+a-.-r.. ■ 0 DO Sample does not include e _.�c-� ��MMBE -��1-.-.1.1.x.■.1..a.�s��11-..-10 80 :particles with diameters r-- -- ----"---- n 70 =larger than 1.5 inches. �"' M MFAM Wd 3D ffi MA11111!#iti:M_irl wiIE la-60 M m- mm"_i-�ir� �m �4 �iMMt�ii7Erl�40 -u C a zI 50 =.21,= ..... -i- =1111 .1== =r='�r —=: `rte..�--.-■ (G]1 . �� .r -30 —wr_=.....m. ■■=1.... >_... .� .. ...... _ _ om∎m0 .=-. .- 1=- 1:11=2: .. �=''''' . T — ”Iffi=ZG 100 .001 0.092 .005 .009 .019 .037 .074 .149 .297 0.42.590 1.19 2.0 2.38 4.76 9.62 19.1 36.1 76.2 12762200 1 DIAMETER OF PARTICLE IN MILLIMETERS : I CLAY(PIASTIC)TO SILT(NON-PLASTIC) I FINE SANDS GRAVEL I MEDIUM [COARSE! FINE f COARSE I COBBLES Sample of GRAVEL,CLEAN TO SILTY(GP,GM) GRAVEL 60 % SAND 28 From TH-4 AT 30 FEET SILT&CLAY 12 % LIQUID LIMIT PLASTICITY INDEX o/a I HYDROMETER ANALYSIS I SIEVE ANALYSIS I 25 HR, 7 HR. TIME READINGS U.S.STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 10 MIN. B0 MIN.19 MIN. 4 MIN. 1 MIN. •200 '100 '50'40'30 96 "10.8 4 318' 3/4" 1W 3" 5"6" 8"0 100 MiiiMINII iw■Ilm is errrromm■■ mia immi ricom ore∎A wimrill awl-t-� ---- -- 1�R .11-1 ==a'G---�`. G� 90 _Sample does not include ;== 111r-1 10 _particles with diameters ====- ==� .=- �a�20 _. A=---= 7D larger than 1.5 inches. s==.....-= .�.;—��"_ , Ea aw —�■��..�1.��..�..�.. —..r��-�----....�∎ z 60 = C' -111-t—':�. "' ��1� -�'.�CC.:G:�F�Z= .-`�G�AD a -�■�-�. NINNIMMI MO 60 a. =1:========... ..._,=1 .=)•'_.�—.1--�- 1'...�.�1�--m. =∎•=11 _ �∎ =aei M-01==" n 10 "1.... ...—■.rte-=. '' -rr.rrs�-�.—a.■—a...-1..�.a�--_ mow..-1�.=��..-r. i∎■= - m■.•-MIN 0 .��..�r.-�w.--...at—r�-1...��--.ter-rr...-a--�.r.1tr.-.1rr1�-nom-rte..~ice 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 0.42 690 1.19 2.0 2,38 4.76 9.62 19.1 36.1 76.2 12752 DIAMETER OF PARTICLE IN MILLIMETERS ICLAY(PLASTIC)To SILT(NON-PLASTIC) SANDS y GRAVEL FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sample of GRAVEL,CLEAN TO SILTY(GP,GM) GRAVEL 54 % SAND 36 % From TH-4 AT 35 FEET SILT&CLAY 10 % LIQUID LIMIT % PLASTICITY INDEX PITKIN COUNTY Gradation 876 SNOWMASS CREEK ROAD PROJECT NO.GS05555-445 Test Results S:1G505555.090114516.Cd14 9113S08S55.145.Gradation.lds FIG.A-5 t" 8 w ill O CO a.4 0 0 0 0 0 : EgEF Eggig5 P 5110. 0.a CDCD0 0.P c C9C7cacn c:c9U' C7V' ti CI OggPiPPRPRo zW W hJWWW55 U>>? V 7 >> rut dl >> WWcncDCDCD5:ncDCDCDca_ 0 a amlN6 pe Oa ,,p ossr00CV° 0_ N til prt g V.S3 il 53 W to 0. _ Z W>.• W u g D -m 53 53 o c a a. >-Zi z F Dtai1 6 2 a = n z w m-po' 0) cc W co lu io 0w o.) g s o a - 0. Q N O Q_' r 0 O l0 co N P N.0 M tF l� Prr,(y ��ecJ trit:cV1,.: 46ru7rN SZ_ OU 1J aVI t7 i?0000Kl4 to nJ U.I 4)11' NNC7� rNrNmM il"a W N z I- w c APPENDIX B SLOPE STABILITY CALCULATIONS RESULTS PITKIN COUNTY PUBLIC WORKS 0876 SNOWMASS CREEK ROAD PROJECT NO.G505655.145 5:1GS05555.000114513.Lettocs OS05555145 L1 Appendlces.doc 7 0 • lll:• A ' I f T ,, 4;4 " ': [ l y's> dg 1 v-47 ',7„.t S t.4,r. � .- r r r s , i 5N�� rr� ° r r3 � - ��V ��s�z« ,it � t 25 , J ,l 4� l il 11 � � � 7 _ - ( - f- Fdi SfY Sly �I I'� .. r F ' r Fig. B-1 PITKIN COUNTY PUBLIC WORKS 0876 SNOWMASs GREEK RO AD PROJECT NO.GS055S145 S:1G5O55S5.000%14513,Lottars1GSO5S55145 L1 Figure B 1.tlaC / C7 ti V- 01•••••• d 0 •... cri e L =1... to ... IA W i t.. A �f A Ura tV = Q W _._.�. ty z T o V 1▪U L. .. O E• -a, .• di ° a r r 'r )II N �a .0 0 T V U a ▪1 . sir Q as ? T min r 2tl %w.I O 1`9` t j �▪ 8�r 1 `{ - 1 f 16, Fie rpid Ct+=P} n4�4 tvP 1 1T+ jx t 4rE C7 r 3t E l A / 5 0 dpi=4 `'��i{ 411M1' 91 .''..:;,44.,.- Ir T V }i It ndlu1�:.txt1 s a via 4C Y } $ 1. 1 r: rM tl{ 4j,r -' -4t , i t f ! . � S 7 :14''` - ,,�„r i' n S7 s i' L.1 fit 1: t )1 1 <It 3 rf t .r. y ,j Y P . i (� Y 4 1 [ JI 4 l f 5 /G. .c z -• ; 44, MI I A• =42 ry .pity 1; ` (i .�A �Q 4a /14d r4r.. KR7 4;i5f nt i:t f. �h � c x�ryr r ((x IAF �m .1 $ ,k `- 1}f(I f f11 Y 'l.P�. ,4 `S 'y' .y f 1 't F ;o,yti f q ' L'�7 f t ,rF 1,,('''^' W ••err ! 7v�a Fsi +� ..:T s UMW bt�iy �t aft 1t-s£.q �7 rq t5t ,li A //2.� 1>is Ik a i 4i fit!�+. 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',1:ifl:'::':•:?.:f:;:K,..:4:r;:iglill'!::i:..4.::i.: 4L.1.1::'-.:.':::,!..:1:•:'::: :1'g:'*:;::::4;.:V,. 0 r- 'i2 8 8 8 8 Lot?) "8 IP- •I?, S' 8 161 8 ' C (o. w co to co CO co co cci CD (0001 x) uolleneig 73 • APPENDIX C ASTM PERMEABILITY STANDARDS FLOOD INSURANCE RATE MAP(FIRM) SLOPE AND SEEPAGE LITERATURE PITKIN COUNTY PUBLIC WORKS 0876 SNOWMASS CREEK ROAD PROJECT NO.GS05555.145 S%GS05556.000114513.LettersIOSOS555145 L1 Appcadicas.dcc "7 Y ------------------------------ . „.,,,,:rI• . ,•••, ,, • rr,e,',.'',': , •.• . •:.,(, ,1 .. :....,,I, • • •','' ' ' - I :.-P1::- • .;., ' • . ." ',.1!,.. 1, ' '‘=2''.....7;., '':.1—ttY,..:'' ••••• -:,: ' y , . - • . Designation: 0:2434—60(Reapproved 2006) , 11q,•,; , . . : . . vii L___ -.••:. • •'t -1- ,•! ,,)7 ' ' Iti" —_____...A---' •_, ...,.._fortar. • ', 111.' ,' •• ,,„ 1 , ...- • 1 ' .,''1• 1 .... .''' 'Standard Test Method , • • •11+,..i - •. Permealiillty'of Granular.Sone (Constant '', ''P' • ' . . ... . '‘.1 . . • . • . 1,1' ' • Tato standard is issued under the Axed designation t.i•2434L the mitiper inpriediately following'the designation indicates the year of i I r • original adoption or,in the case of revision,the yeof pi ltiatieiiidiiiipturaber•Vparentheses indicates the year of last reapproval.A ,,I ... . superscript epsilon(e)indicates an editcnial changesinci•tligigagvision or rehp.,proval. I 1 : 'II I ; .. . This standard has been aiprovesefor use bj,agencies iiithe'Pepaiiineof Defense. " ,,t;i• . I.111 I.1'3 1 -• 3 . . • I 3 • I.. ' ,I '. (. . 1 .•' f I.. Scope . % . . ' ) •. 3.1.1,contimuty,of flow with no soil volume change during i ■,.. , ‘1 • •;" :1.1 This test method covers the determination of the aoefr -':4 test); , 0,.: • ... . Went of permeability by a constant-bead 'method for the 3.12 Flow witlithe soil voids'saturated with water and no A • •: - 1;1.-.1- =•. laminar flow of water through gitiOak soils.The procedure is air bubbles in the sot.voids, establish representative values of the coefficient of PermeA, : ... •3.--P:Flow in the steady state with no'changes in hydraulic ,(315,C - • : • 'ability of granular soils that may occur in nituial depositwait'.% gFA4iPiit,and il , ;j„:.. • „ -...3-.1A-,Direct proportiOnality of velocity of flow with hydran- -i t ), . laced in embankments,or when us•.,,_ ?„ 1.::,- ' .• P -,7.,,Ik.- 4 :1Wr.i,',,•1'0'1,7111,3•001:40-E?isiii.AieiK,i-a--;:. - h gradients below certain values, at whkh turbulent flow ;'..i 1.1; ,.lv•-..,...,,,,,-_, i ?,--7-1-\-----E',,,,, , . starts. W.,..0,4-.0(...L,SAk,..f.L,';'..- ,..5,.'..?..,..-SIA,LS_ . ,.. . .L.oijt:A-1---c•A';\9'fiaii:- 'ilEllere, 11)4.;',.2 i-0-):171,•"}iiti-,,;;'1,:i1,;,;,,6Til'V,•=_jtii-a((-14 ,,, , T•,-.-3.2 All other types of flow involving partial saturation.of .44'4;104,qA-4•:lz)-7,-',0 7,- ,' (•'''.7'-'7.,-21/ soil voids, t , and unsteady state of flow are 4(..t,,,rn. ?4,.„;„!..,...-....-......-•-...-- ----,„,„..-- ----,,--,----.---...--, . .urbulent flow, . standaid does not import to address all of the transient in character and yield variable and time-depen.dent .r., -.. salty peoblems, if any, associated with its se it is: the..4-1.cPPfh.ci-eg ts. of.p.ermeability;therefore,they require special test 1,'':J1.1 • responsibility of the user of this standard to establish appro- conditions and procethires. glare safety.and health practices and determine the,applica,.,.. .,4e .s.-his i. 1. Milo,ofTegitlatorilimititions pricir fo use; ' 1 t hi - - 4.1 Permeameters,as sbowain.Fig.1,shall have specimen 1 '. 2.Refeien.-cedDoeuments. • • • • " . - .. ..-:;,•,.Cyliuslars..with mininuini:fiPineters. ap*oximately S or 12 0.',1r ,.. ,,..21 ASTM Siandards:2 , .,• '• ' --.tifiles the maximum.particle site in accordance with Table 1. - i, .....• ' -.•::D 422 Test Method for Particle-Size Analysis of Soils The pernieameter should be fitted with (4).q.Rqrog,s disk.or 110 ,',11 D 4253.Test Methods for Maximum Index Density and Unit suitable reinforced screen at the bottom with a permeability : . Weikti tif'Soils Using a Vibratory Table greater than that of the soil specimeni.ibui with•operatigi ;1 :.D 4254.Test Methods for Idininnun Index Density and unit.. szitficiently.small (not.larger.than.10%.finer-size):ta PriVeizt V.,::i•j11 ,,, •-....,Weight of Soils and,Cakulation of Relative Density movement of particles; (2) manometer outlets for measuring . i•:,_ .. -: : - . „ , the lays„of head,,h, avera len,gth,,4,equivalent to at,least the • N Yundarnental Test Conditions ' ' diameter,of the Cylinder;..( ),a. porous-disk, or suitable ,-3.1 'The following ideal test conditions are prerequiaites.for reinforced screentwith:a, spring attached to the top, 4t2r anyi 11 i•••1 1 fhe laminar flow of water through granular soils under other device,for applying,plight spring prepure,of22.tO p-ly. 114,. ■ constant-head conditions: ( to 19..-/bf)total load„:when the top plate is attached.itt place. This will hold the placement density and volume ofisoil without . : - 1' - significant change during the saturation,of the specimen and , .q,..., , Anis testmethoctii under tholtirisdiction.Of ASTMChnunitteC Dig on Soil and th ;PerineabiliOE testing to satisfy the requirement prescribecl.in `,.. Mk and'is.the direct reeptmsibility:of Stihnnonnittee D18.04 on Hydrologic 3.11. 1 *Verdes and Hydraulia Barriers. t approval Feb 1 2006 Published March 2006 42 Constant-Head Filter Tank as shown in:Fig,. 1 , to '.`',;:,■-0 1, , 1 Auran edition . , . ,,briginalIy.. 1.•,:',;Ya;. r! .! timed in 1961 Lost previous edition approved in 260D as b 20,4_68(2000). supply water and.to.remove most of the air from tap water, • trot referenced AVM standards,visit the ASTM websife,www.astoi.org,or fitted with suitable control valves Ito maintain conditions, i 'O. - ' Mixt ASTIvi Customer Service at service@asttn,org.Far Annan/Boak.of ASTili deseriberl.in 3.1.2.. . . • - . !. .. i kadardS volume infoimadon,refer en the stantlardfs Document Summary page on . ; . tbfAsTivi website. Nara 1—De-dirawater may be used If preferred, .... . . . .-. . , . • .i ., • -••• . •• •.: ., . I. i IV. 1 •• .. • • • . , . .. ,.:•;;;1,.' . • . , . • • _ • .11 ,,,4 .. ,,. . . . , • - • . ' i 0 ' • . • . ''...l' ■1 1 • •.. .• ittr!''1 1 ' • • ' . . , 'Toole ASTM intematIonat,100 Barr Hamer mate,PO BOX C700,SW COTIstiohocken,PA 19420-29S9,United States. ;II'ir,•;': .1• ; • 1 1 i t • , . . ' 7 ...---- .,„. 5 -■■11 J• '.. ' --~—.~ .� .^__— CONSTANT-HEAD FILTER TANK (To smatter scale) 0 FILTER'TANK VALVE (ef '-• " SCREEN - . j:ii • 0 METAL SPECIMEN 'arc '1; • ) Ir"--.■":•i fil -.'.) • : . . ',,i.• ..;.1.;: - r,' i ... 1(.:k....) , 1 i f' ''Y'''Ae it - ' .., MaXirntinj eP539°44° -%'"''•..tesethan 55%of TotalTSAoall FiLeEtallttocYaonlinedieevremmol:pimemnuetremiecrYlind'etti'r:D're.latha‘ma.1,8.3'5%of.T.:Ola-1.6.6.•;Ftlo.l'hi''ti::143' le■nt.lit.ci:04:7-n-1::: 141,1,h 144 '..'•4.5..E.2' 'ige 17141)iiii:Afted With'apeciarcylindrical spouts 25 4.8 Scoop,with a capacity of tbout 100_g(0.25 lb)of kolii. ,1:11. •.•.t:. -iit Parlielesiadd lintlip:VAitillii•dilbeter..kif 2.00-mm 00011:10) sweep second haiid, 250-ikri graduate;tquart.M-`'`' f.'..C- nitting pig, lift'.i.VIS..7.....:'.4- suggested:a vibrating tamper fitted with a tamping foot 51 mm tahling les than 4(1%-er ale lagterdal-P4Asinglibe:, 5/11-0.WILI .f.ii••••:.;r•:..i...'.': (2 in)in iliainetEt.WhliclingiaMpei4ith a taniping'foot 51 mm 200) sieve and equal. to an amount'IsuiEcientqcii tatisPf,,,. k.iii.'"A 3:. '...:` (2 ii.)iskdianielq;ialitli.khdfoi.sliding weights of.100 g(0.25 requirements pzeic:iled.. in.5. ,I,u.11...51 s,,,41.41n:i:l.sbr_ei.Cited:'8`iiLifi 5.2 A sieve analysis(see..Mefhodg)4g4 shall-bediaddo....P1:,. ''...1=1•6!...d• •'., content),having an adjustable height of drop to 102 nam(4 in.) 1'4.'•••,',. ::"; for sands and 2(P„i.um..(8,..ig.).,for. soils,.with large gavel rdpresentatilre Sahli&am.ocliiiiilete'slisil'Priof tblit:Ok'"fri ability test Any particles larger than 19 rom(3/4:in) sti, :_t-, 4.5 Vacuum Pump or Water-Paucet Aspirator, for evaouat- separated out by sieving(Method)3 422).This oversize mi. ' rial shall not be used foi the permeability test, but:Oil t.i'.Y..-.z.. ..;,' ing and for saturating soil spechnens under full vacuum (see percentage of the oversize material shall be recorded. .,:•';';'i 1 4.6 Manometer Tubes, with metric scales for measuring NOTE 2—In order to establish representative:Ines of coefficiefffi.,:;j' perraeabilities for the range that may exist in the.situation li...,....,.:::1: 4.7 Balance, of 2-kg (44-1b) capacity,.sensitive to 1 g investigated,samples of the finer, average,and coarser soils b 131V I • - - ,i=iks,'II' st } I'` n 2434-i 68 (2006) :.` I ! 1 INLET VALVE 1...0 ` I p t,VALVE i a / d —r- .i... I;�: :• ',f,,, SOIL OUTLET VALVE —_ WATER i i s k{,;:i !{;I1 ir3i k,, 1 _ ; _ '.', •///zeeee rIlirrrrrrezeeeerrreeree eVeeeeer/r1/r it V• i;; ___. . - . . .11■ISSIBINSININIAW "T- .,--,,, 411111M.11111.1111 4 1 11 • :;..:i. . i i•CV .' ,11.-i I -•:,i . • • • 11V, ,:.::' ii.5;4,..1 . • f'H -, Designation: D5084-03 ..,_ , • ,i-.,;.• ,.. -11111-- - ... . 1.-..? . NalONAL . •' • • ,bi ilr .. .0.f' - '-7-7 .':. • - " 2:- • • .• ' -.• •: r:, ilf.1-4 . . 4'?.1 ... ". Standard Test'Methods for ' ' ,,,,-„,k ...c.„..:1.. .... . . .. . .. .. . . . . . . -• , Aq.. 1 • . Measurerrient of Hydraulic Conductivity-.of Saturated Porous • . . .. Materials Using Using a Flexible,Wall Penneiimeterl • '' • -•' '' '•' •' '' • -•-'.0.-- t .:,... ::4111 '..-41' . Ilia,stentlard is issued.under the fixed,designation D50841 the number imnicilia43;following the designation indicates the y;at'of 1 . I ' - r.;.; ; . •original adoption or,in the case•or savislon,.the year of last revision,A number in parentheses indicates the year°Pleat reapprovall•A • ' . '• '`..I superscript epsilun(s)indicates an editorial change since the last revision or reipproval..• - • • ..., • - .• • '''il'nfilli-F. 01'1.1'1 . • . . . . . ' .• ••- OA il ' ' ,.'1, Scope* . . • ,. 1.3.2 If the hydraulic conductivity i&less'thaii •--about -a•li ..'• ."-.1 1 These test methodsenvet labo_ratory meas.umment of the 1 X 1 -11 0. •m./s;then standard hydraulic ,Syttems•and tenaperaL• . •.-!':.;hydraulic conductivity(also.referre4.to as coefficient of per- tare envirotunents willttypically,notaufficet Strategies that may, f itieabiliV) of water-saturated porous pateri4 with a flexible be possible when dealing with such impervious materials may all permeameter atteMperatureS between about 4 and 30°C include the following: (a) controlling'.t1113 temperandi inbre ■.;;I ii. _1`,/, :‘••• ".. -. and 8611)..Temperatures Outside this.range may be usecl: preciaely,.(b) adoption of unsteady state;trTeisiireinentS by .11 jaiwever,the user would have to determine the specific gravity using higil-adeuraty equipment along with ihn.rigcinini tinaly- ...-0,.... - •n-i-'i i"-,(ft:Mercury and RT(see 10.3)at these.tempratur&Using data ses for determining the hydraulic parameters (tins_approach i, i!;:l I t!1,,',4 It-i-il-117;-.1,'Aiiii Handbook of Chinds.try and.Pilyltp:'The*.krg:_six reduces testing-duration according te,Diang tit ki.(ip),intd-tc) ... Shortening the length.or ghlarging the CrOssLseetional area, or - •••'I••liteniate methods or hydraulic systems Ili4 May be used to 1-.4av-.,1,i:,,, . ii ilk - -1,., .,:t,,," sieasure the hydraulic conductivity.'These hydraulic systems both,of the test specimen.Other items, such asiike.Of higher •:.coll pl•"-1; iii ág follows ."' '.L :' .'':4'• .-- ... , ,, ,. hydraulic gradieuts;VWer viscosity fluid, elimination of any I qii1 ..r1-.1 ;., - -.:- • •- : 111 I ifi Method A:--6onstandielid ' ' •• - . ' possible chemical gradients and bacteria groWth, and-strict rAfirt.., •: o :.: --. • .--' r 11.2 Meth&B-41iiiingteid,coiiiiiult tillv)a ier elevation 1'exifloati,on•cif learige,i.may also be conakterak "1.4 The hydraulic coiadtictiVit-y of Materials with hydraulic --:*1,- 1.13 Method 6-17alling Head;rising talWater elevation ' 1.1.4"Mgthdd D--:CanstatitOate orlloiv- •..." ' conductivities greater than 1 X 10-5 m/s inky he deterinin' ed by „. .,!rii, ,-. '1.15 Method E-Constant Volume-Constant Head (by 'lest-Method D2434. ., . xbuty) •. _..! . 1.5 All observed and calculated values shalt conform to the r'rmtirti•'' ale l'Irir17,';1'i -;-:-:-:.,. 1.1.6 Method Pf=eonstant"Volunie.-Fallin' g.1.-/e,ad(by mer guide for significantdigits and rounding establishain Practice cary) rising tailwater elevation l' - .1. ' '' " . , D6026. . .. , -I.,,,,ro -.- . ' ..... , 11: data .- Y i 1;-' '''1:: .12 These test methods use water as the pertheant liqiiid;See 1.5.1 The procedures used to specify how' :hie celleetea. .. ci-11.•ei•';-1'c 4,5•and Sectiori6 Miles ants for'•••:ter re, ,*events..__ recorded; and calculated in this standard are-*regarded as the ,ii,aqii) ; ki.w4...,0,,,.. ,.::fi,...44, . 4.. . ..,. dill,. *Ii_,,,xyl,•:'-e,piktitik.761171 .„,,..ifil industry standard. In addition, theiirdiepresentativi Of'the , [1°14 •lai'f.i .X1fIr 2 4,,Va. milL' -17-Vki,-.3-14X-an...t',...' .:.1 !. . , significant digits that should generally be retained:The iiroce- -:2-•-,14! .4...lrilit,,'',,,'t'-‘7-kr-.Y.Y., ).P'''t,i',-0 7414,W:elf 104110•Pt•-°.'7A.'f . ---7r:-•7-,' "i411.V.;ItiWjy.:' P';illaiiail'aivictdeigbylUiyikW41-70',;. 4ures used do:net:Consider material Variation,'purpose for 'Ai.:,;.1.1A:=', i!,'[.. 4,43s my v,,:.,-Is qii-r.ff-g--ctik--04.4.:-',-•,,Arstig,444.,..;.: Obtaining the data, Special putpose'itudiee': or an le-"i0.:-1.'=,'-':'4,,,,,,-'-,P-1-e-••:-.sicitc• .'s").t0V-!.F.-Y-.t.-tagl-e'-:•-1f,a9.40".•0'. - .AV' - V 1".i.1i- 4w.;-,:- I Consder- thoisgid or k.ai • Ngkilpi 1-.I'2cf.::a-.;•,:- :z ations for the useri objectives; and it is coteni.ort praOtice)to •.,z,4/ ,t!gdectivftrtypvidlYitattb "*1P's-sttititilb3Ftit.1.7>Tra-7.m/s, increase or reduce signifidant digits of'retorted data.to be .•;.••',.."• :.'..•,..1.3.1 If the hydraulic conductivity is greater than about commensurate with these considerations It is beyond the scope ,2,-.....,, ..."-V.' 1,X 1076 m/s,but net!more than about 1 X 10-5 m/a;then the of this standard to consider significant digits used in analysis .14'11 U-ze of the hydraulic tubing needs to be increased along with methods for'engineming deSign. - • '!.,.,41 ''J•ibi---lit 1.6 This standard also contains' a Hazards section about - - VI are porosity of the porous emtpieces;Other strategies,such as r..1„, Itin higher viscosity fluid or.properly decreasing the-cross-' using mercury,see Section 7. • .... • • t:, - ••i-4..i:Sletional area.of the test specimen,..or both,'may also be '. 1.7 The time to perform this,testi depends on such items as *ii "L3": ' Possible.The key criterion is that the requirements covered in the Method (A;B, C,D,B, or F) used;the initial degree of 147.f. • ii ,..' -5ction 5 have to be met. ' saturation of the test specimen and tbelydraulle:conductivity p: ; --,:' .of the test'specimen.The constant'Volume Methods(13 and V) i.F1001 .'b:• ,.- VI , . . 47.'.3 and Method D require the shortest-period-of-time..Typitally a ..,f., q !..:1 , .....______........ ' . test can be performed using Medic&D,E,or F.within two to . t. :-..,-;:: • ....ii■ .:4:,.• , This standard is under the Jurisdiction of ASTM Committee D18 on.Soil rind three days.Methods A,B,and C take a longer period-Of-time, ....:1-•. 4.00:it.and.is the,direct responsibility Of Subcommittee D18.04 012 Hydrologic •11'.=.1.: P.Wetiies of Soil and Rocks. ?:hp . urent edition approved Nov. 1,2003.'Published January 2004. Originally 11 4-1 •.;., .. r. : Waved in 1990.Last previous edition approved in 2000 as 1)5084-00' 1301; 2 The boldface numbers in parentheses refer to the list of references appended to ",' t‘• I N520,05084-03. this standard. k eAli : i • . PIO . , . L.tDif ....4,, _ ,.1.`, *A Summary of Changes section appears at the end of this standard. ta...:,,•: • O IntemalIona),100 Barr Harbor brim,PO Box C700,West conshohacken,PA 10428.2000,United States, r gri...V kilrlil ifl-li ' . 7 e r 5 3�' 11811 IIh tii. • t_ *1 8 .1 ,,,, ,-;,), :111E o r111Q Eli i te lid 11 hi . - _ H._ tt. ri;0; 111 0 a� N 0.' ES f4 .S 44 1!;" V rr. vs 4 1 I k O �o 1 if. r p / ° d a 5 x lb' V.v v INOYRdASS C., H� i�J:af;1'n w fa 0 O • • + -!- W N 7 C/ kp ti 64 CA") 4 40 5 SHEAR STRENGTHS OF SOIL AND MUNICIPAL SOTS WASTE Recapitulation o • The drained shear strengths of sands,gravels,and 1 rocldill materials can be expressed as s cr' tan as 1411, 'l at • Values of gyp'for these materials are controlled by 1111 density, gradation, and confining pressure. • The variation of ¢' with confining pressure can t.0 � be represented by •;, IllitIVIII ‘,., d'l = �o – AO logo ea 1.5 k ! L . Pa ,. where d is the confining pressure and p,, is at- s'- mospheric pressure. It 2.0• When large particles are removed to prepare spec- f Q) - buens for laboratory tests, the test specimens , , . should be prepared at the same relative density as :, the original material, not the same void ratio. 2.5 litilkillymillie• Values of ¢' for granular materials can be esti- .„ mated based on the Unified Soil Classification, 0 relative density, and confining pressure. gii.• Values of 0' for granular materials can also be a.o estimated'based on results of standard penetration ° 10 20 50 40 50 80 70 ao tests or cone penetration tests, Standard penetration blow count-N F Figure 5.5 Relationship among SPT blow count,overburden S pressure, and relative density for sands. (After Gibbs and Table 5.2 Values of�u and pry for Sands and Holtz, 1957, and U.S.Dept. Interior, 1974.) • Gravels Standard Relative SILTS a Unified Proctor density, AO ��.4.`' fi e shear strength classification RC° ��, a gtb of silts in terms of effective stress , ]? ) Dr (%) .(deg) (deg) can be expressed by the Mohr–Coulomb strength cri- P GW, SW 105 100 46 10 tenon as 100 75 43 8 E 95 50 40 6 s = c' + 0' tan 4)' (5.5) 90 25 ,37 •4 ti GP, SP 105 100 42 9 Where s is the shear strength, c' the effective stress ' a 100 75 39 . 7 cohesion intercept,and 4i' the effective stress angle of 95 0 36 5 internal friction. • 90 25 33 3 The behavior of silts has not been studied as eaten- u SM 100 -- P 8 sively and is not as well understood as the behavior of P• 95 34 6 granular materials or clays. Although the strengths of S 90 _ 32 4 silts are governed by the same principles as the sI 85 — 30 2 strengths of other soils, the range of their behavior is C' wide, and sufficient data are not available to anticipate st • Source: Wong and Duncan(1974). or estimate their properties with the same degree of "RC =relative compaction = ydlydmex X 100%. reliability as is possible in the case of granular soils or S ID,,_ (e,,),,-- e)le,„,„ –e„ ,) X 100%. clays. ` = oo `- dO login o-13/p. where p,,is atmospheric Silts encompass a broad range of behavior,from be- ii TI pressure, havior that is very similar to the behavior of fine sands n b• • C� \C2 W e L5.b... .o ....,�,c-M Y►'1A t c00.nivo W - I; • Table 3.5 Range of Hydraulic Conductivity of Natural Soils , _ -- Q �,• Hydraulic conductivity range • Soil type gpd/ft2(m/sec) Permeability description I Openwork gravel(GP) 20,000(1 x 10-2)or higher Very high Uniform gravel(GP) 4000 to 20,000(2 X 10-9 to 1. x 10-2) High • I r Well-graded gravel(GW) 1000 to 6000(5 X 10-"to 3 X 10-9) Moderate to high Uniform sand(SP) 100 to 4000(5 x 10-5 to 2 x 10-9) Moderate to high I; Well-graded sand(SW) 20 to 2000(1 x 10-5 to 1 x 10-9) Low to moderate ' Si sand(SM) 20 to 100(1 X 10-5 to 5 x 10-5) " Low i Clayey sand(SC) 2 to 2$(1 K 10-•to 1 x 10-s) Low to very low {' ill(ML) 1 to 2(6,x 10-7 to 1 x 10-6) Very low `; Very low to practically Impermeable Clay(CL) 2 X"10{4 to 0.2_.(1 x 10-x0 to 1 x 10-7) pe i•--- 1 X u,''' 1 g (tr.5 c ii/St's 11!' however, of significance only for problems involving con- The estimated hydraulic conductivities shown in Fig.3.7 I �'i solidation and stabilization,or when analyzing the migration have, in the authors' experience, given good results if the tf j' of contaminant plumes.The very high hydraulic conductiv- samples selected for analysis are representative,as discussed t ,. ides shown for openwork gravels can yield enormous water in Section 3.2.If we use Hazen (Eq. 3.11)to estimate the I 1 I' quantities, but fortunately their occurrence is rare.We can hydraulic conductivity of a'medium sand with D10 0.4 • JIB m say that the great majority of dewatering problems concern m,the answer is 3200 gpd/ft2 (1.5 X 10-3 m/sec).With 1,11,. soils in the range of 20 to 20,000 gpd/fti (10-5 to 10-2 Prugh's method (Fig. 3.7c),such a sand would have to be ;• m/sec). At three orders of magnitude, the range is quite very loose and extremely uniform to have such high hydrae • iIlj enough - tic conductivity. j'I' Hydraulic conductivity of soil samples can be measured When estimating hydraulic conductivity from grain size II in the laboratory by permeameters [3-15]. Hydraulic con- distribution,we must recognize the following limitation of 1 I,'1 ductivity of granular soils can be estimated from grain.size the method. The major determining factor of K is the of ' l analysis curves by empirical methods.Hazen[3-16] relates festive pore size of the soil.To the extent that grain size is 1 �ii hydraulic conductivity (K) to the D10 size of the soil from representative of pore size, the various methods can give ••.; •,; grain size curves, in millimeters: reliable estimates. When the actual in situ hydraulic con- fi h. K= 2(100 D10)2 gpd/it2 (U.S.) (3.11) ductivity turns out to be significantly different from the es- 1 i}I; �'' 10 timates, w e have f o u n d t h a t some f a c t o r besides grain s i z e 1 s 1 K (0.1 D )2 m/sec (metric) (3.12) 'l , • io is affecting pore size. From experience these factors can be 'p .:0,-..:, of interest: , L ';• ;t'l ., The results obtained from the Hazen'relationship can ,i 14 -~ be reasonable approximations if the samples are represen- ,, "C :,;t:'1 • Density and un f rmity. The Prugh method (Fig. 311') ,•.•-5 tative,but not always.There are inherent limitations in Ha- adjusts for these factors.Where a soil is very loose,{eery, l'i t.1, zen in that the uniformity and density of the soils are not .s,,%:. dense,or very uniform,Prugh is preferred. . ' II! f�.- considered. Hazen performed his experiments using very :,.. • Stratification.Many soils are layered,with seams of very uniform sands with Cu less than 5 and Dx0 between 0.1 and Y Y ry 3 mm.He used such sands to develop slow sand water fil- clean or very silty sand a few inches or less in thickness. 1 +,, �.•- The typical 18-in. (450-mm) sample is mixed during iii;, ,p�•• tens well-graded; ,which was his field of interest.Awell- dd soil will Yil ,e T have a lower hydraulic conductivity than a uniform soil of the grain size analysis, and the stratification is not re- I• I , rJ the same D10.A dense soil will have a lower hydraulic con- fleeted in the curve. Horizontal and vertical hydraulic : l '".•ductivi;ty than a loose one of the same grain size distribution. conductivity may vary greatly from the average value es- By a combination of laboratory and field investigation, tirnated• •.,r.2;;_::Byron Prugh developed an empirical correlation for esti-• Figure 3.2a is a photograph of a day layer within a I • mating hydraulic conductivity based on grain size analysis sand deposit that significantly affects the overall hy- <i • f% and in situ density. Figure 3.7 shows the results of Prugh's draulic conductivity of the deposit.Figure 3.8a shows a :^",V:work. log of two samples taken through a stratified desposit. ▪ 4-•- From a mechanical analysis such as that illustrated in The individual layers shown have been segregated and 1. I!' "rg.3.1a,the Dso and C„of the sample are determined.The each subjected to grab size analysis.Fig 3.8b shows,for ':i,••`ri situ density is estimated from SPT N-values(Table 3.1). each 18-in. (450-min) sample, the grain size analysis t.."gither Fig.3.7a,b, or c is selected as representative•of the curve of each layer within the sample and of the corn- ,' Ole'nsi and the hydraulic conductivity estimated. posite sample after it was mixed.The risks of estimating d' g IntentionaPy Left 2-