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HomeMy WebLinkAboutpitkin.planning.273514202001, 273514202002, 273514202003, 273514202004, 2735214202005, 273514202006,273514205007, 273514202008, 273514202009, 273514202010, 273514202011, 273514202012DOCUMENT THIS FILE MAY OR MAY NOT CONTAIN ALL OF THE INFORMATION LISTED BELOW IN THE FOLLOWING ORDER Summary Sheet Resolution for the BOCC and /or P &Z Ordinance for the BOCC and /or P &Z Determination for the Hearing Officer Administrative Determination Staff Memo Application Public Notice, Acceptance Letter, Referral(s) Letter Site Plan Miscellaneous Plat(s) RECEPTION #: 5805 21,06/14/2011 at 10:32:16 AM, 1 OF 3, R $0.00 Doc Code RESOLUTION Janice K. Vos Caudill, Pitkin County, CO RESOLUTION OF THE BOARD OF COUNTY COMMISSIONERS OF PITKIN COUNTY, COLORADO, GRANTING ACTIVITY ENVELOPE AND SITE PLAN APPROVAL FOR THE LE CHAMONIX HOMEOWNERS ASSOCIATION BANK RESTORATION PROJECT AND EXPANSION/RESTORATION OF A LEGAL NON - CONFORMING STRUCTURE WITH SIGNIFICANT CHANGES BOCC Resolution No. _ J -2011 Recitals I. Le Chamonix Homeowners Association ( "Applicant ") has applied to the Pitkin County Board of County Commissioners ( "BOCC ") for a one step Activity Envelope and Site Plan Review for a bank restoration project to repair a failing timber retaining wall on the north side of the building. The Applicant also requests approval for Expansion/Restoration of a Legal Non - conforming Structure With Significant Changes due to the fact that the Le Chamonix complex resides within the 100' road setback of Maroon Creek Road, the 100' stream setback of Maroon Creek, and the side yard setback for the Lot. 2. The Le Chamonix complex is located at 1501 Maroon Creek and is within the AR -10 zone district and is legally described as the Le Chamonix Subdivision Units 1 -12. 3. The Le Chamonix complex attained a variance from the Board of Adjustment for encroachments into the 100' Maroon Creek Road Setback and the side yard setback pursuant to BOA Resolution No. 04- 2011 (Reception No. 579879). 4. The BOCC heard this application at a duly noticed public hearing on May 11, 2011 at which time evidence and testimony were presented with respect to this application. No written public comment was received during the comment period. 5. The BOCC finds that the proposal demonstrates the need for restoration of the failing retaining wall located on the bank of Maroon Creek. This proposal, if implemented as demonstrated, will improve the bank of the Creek and improve the safety of the Le Chamonix complex as a whole. 6. The BOCC further finds that the under Section 7- 20- 80(c)(2) the application has been presented as a bank restoration project and has been designed for the purpose of restoring, and preventing further degradation of the bank. 7. The BOCC furtber finds that the Le Chamonix complex is a legal non - conforming structure, and under section 9- 50 -30, the proposal will not create adverse impacts. Restoration of the timber retaining wall will improve the function and safety of the wall. NOW, THEREFORE, BE IT RESOLVED by the Pitkin County Board of County Commissioners that it hereby grants approval for the Le Chamonix Bank Restoration Project and Expansion/Restoration of a Non - Conforming Structure With Significant Changes subject to the following conditions, which shall run with the land and be binding on all successors in interest: The Applicant shall adhere to all material representations made in the current or prior applications or in public meetings or hearings and shall consider those representations to be conditions of approval, unless amended by other conditions. 2. Prior to submission of any future permit applications, the Applicant shall be required to submit for approval by the County Attorney and Community Development a Site Plan with an Activity Envelope in accordance with Land Use Code Section 2- 30 -20(g) and Application Manual Section 2.1.12. The above referenced approvals shall be a condition precedent to finalization and recordation. The Applicant shall submit an earthmoving permit that identifies all areas disturbed by construction. The permit shall include a detailed revegetation plan that shows native riparian plantings and/or vegetation in the area. All revegetation shall occur within one growing season of the project's completion as represented in the application. Financial security for successful revegetation is required. A tree mitigation plan shall be submitted for the removal of any trees larger than six (6) inch DBH. 4. The Applicant shall provide a detailed construction management plan which delineates access to the site, and all disturbances, material storage, and parking areas. All disturbances shall be contained in the approved development envelope. 5. The Applicant shall submit a drainage and erosion control plan which addresses how sediments will be contained on site and prevented from polluting Maroon Creek. 6. Lane closures of Maroon Creek Road shall not disrupt special events that are scheduled to use the Road. 7. The Applicant shall clear Maroon Creek Road of debris associated with construction, on a daily basis, or more frequently if required. 8. The Applicant shall obtain a right of way permit for Maroon Creek Road closures during construction prior to issuance of the building permit. 9. No development shall occur outside the approved activity envelope. 10. Statutory vested rights for the approval contained herein are granted pursuant to the Pitkin County Land Use Code and Colorado Statutes, subject to the exceptions set forth in Pitkin County Land Use Code, § 2 -20 -170 and C.R.S., § 24 -68 -105. The statutory vested rights granted herein shall expire on May 11 2014. 11. Failure to comply with the conditions of this approval may result in revocation of this approval, or any subsequent permit(s) or approval(s) related to this property, or vested rights associated with this property. Resolution No. N,; -2011 Page 2 of N NOTICE OF PUBLIC HEARING PUBLISHED IN THE ASPEN TIMES on the 10 h day of April 2011. PUBLISHED AFTER ADOPTION FOR VESTED REAL PROPERTY RIGHTS IN THE ASPEN TUVIES WEEKLY ON ( - ;i6 — tO /� APPROVED AND ADOPTED at the public hearing on the I 1' day of May, 2011. APPROVED AS TO FORM: John El C omey Case # 019 -11 PID#: 273514202001 thru 012 Resolution No. 6 3 -2011 Page 3 of BOARD OF COUNTY COMMISSIONERS OF PITKIN COUNTY, COLORADO Rachel F. Richards, Chairwom Date: CJ`s ao � I APPROVED AS TO CONTENT: inC dy Houben, Community Development Director ATTEST: MEMORANDUM TO: Pitkin County Board of County Commissioners FROM: Mike Kraemer, Plagnerr4W THRU: Cindy Houb mmum Development Director RE: Le Chamonix - Activity Envelope and Site Plan Review for Bank Stabilization and Expansion/Restoration of a Legal Non - conforming Structure With Significant Changes DATE: May 11, 2011 REQUEST: The Applicant requests Activity Envelope and Site Plan Review for bank stabilization work along Maroon Creek for the Le Chamonix multi- family housing complex. APPLICANT: Le Chamonix Homeowners Association. PID#:273514202002 thru 012. REPRESENTATIVES: Glenn Horn, Davis Horn, Inc. LOCATION: 1501 Maroon Creek Road — Across from Highlands Ski Area ZONING/LOT SIZE: AR -10/2 acres 2010 AERIAL PHOTOGRAPHY: Highlighted in orange. Page 7 of 7 BACKGROUND and EXISTING CONDITIONS: The Applicant states that the Le Chamonix multi - family housing complex was constructed in 1965 and as a result of a rezoning, the complex became non - conforming. Le Chamonix is a non - conforming use and structure within the AR -10 zone due to the number of units that reside within the complex and the fact that the building lies within the 100' road setback of Maroon Creek Road, partially within the 100' setback of Maroon Creek, and partially within the side yard setbacks for the lot. The structure is built on the top of a steep slope that leads down to Maroon Creek. On the north side of the building timber frame retaining walls provide structure support for the Le Chamonix. The Applicant indicates these retaining walls are failing and need to be replaced. Staff has been to the site in the past and agrees that the retaining walls need to be replaced. Due to the depth of snow, Staff has not provided pictures of the retaining walls. Appendix A of the Applicant's submittal shows these retaining walls prior to snowfall. SPECIFIC PROPOSAL: Page 3 of the Applicant's submittal outlines the specific work proposal. This work includes: • Soil nailing the existing timber retaining wall; • Shotcrete the soil nails and existing timber retaining wall. This increases the protrusion of the wall into the 100' Maroon Creek setback by approximately 6 inches; • Have limited lane closures of Maroon Creek Road during construction of the wall; • Revegetation of disturbed areas along Maroon Creek The Applicant has also indicated the need for setback variances for this work due to the fact that the shotcrete wall will further encroach into the 100' Maroon Creek Road setback and the side yard setback. The Applicant initially requested that the BOCC waive the requirement for a variance but has since appeared before the Board of Adjustment on May 3, 2011, and was successful in garnering approval for these variances. REFERRAL AGENCIES: The application was referred to the Planning Engineer, the Colorado Division of Wildlife (CDOW), and the Maroon Castle Caucus. Comments from the Planning Engineer can be viewed as Attachment A. No other comments were received. OTHER CONSENT NEEDED: The Applicant will be required to attain a right of way permit from the County Engineer for the proposed Maroon Creek Road lane closures. The Applicant has also indicated that Le Chamonix residents will park at the Highlands parking lot across the road while constructing is occurring. The Applicant has supplied a letter from the Manager at the Highlands Ski Area indicating that this is acceptable. REVIEW PROCEDURE Because the structure is considered a legal non - conforming structure, the BOCC shall review the proposal based on the following criteria, in addition to other applicable bank stabilization review standards. Below are standards in the Land Use Code for which the project will need to show compliance. Staff has outlined these standards and has provided responses to them. Page 2 of 7 L STAFF COMMENTS: RESTORATION OR EXPANSION OFNON- CONFORMING USE OR STRUCTURE W1THSIGNIFICANT CHANGES The Applicant has applied under the section 9 -50 -30 of the 2006 Land Use Code. The BOCC may permit modifications to a non - conforming use, subject to compliance with the standards in this section. A. Adverse Impacts and County Land Use Policies: the BOCC finds that any adverse impacts of the non - conforming use or structure on the neighborhood or the County as a whole and any inconsistencies with County Land Use Policies in Chapter 1 be tolerable; Response: Staff feels that the proposal to restore and slightly expand the failing retaining wall is in the best interest of the Le Chamonix complex. Adverse impacts of the non - conformity would be mainly visual, however the future retaining wall is shielded from the public view and cannot be seen from the Maroon Creek Road. Additionally, possible damage to the slope has been addressed by the Applicant in a revegetation report. A Consistency with Master Plans: The use or structure is generally consistent with adopted master plans for the area and adjacent land use; Response: The Aspen Area Community Plan (AACP) does not specifically speak to expansion of non- conforming structures. However, the Applicant has correctly identified the Parks, Open Space, and Environment section of the Plan which states that "it is the adopted philosophy of the community to preserve and protect the natural environment'. By stabilizing the banks of Maroon Creek, the Applicant is consistent with this goal. C. Building Code Standards, Hardships or Improvements to Function and Appearance: The Applicant demonstrates that the purpose of the development is to: 1. Meet practical difficulties and hardships which arise from the existing restrictions upon repair, alteration or restoration; OR 2. Improve the function and appearance of the use. Response: Staff believes that this proposal can be viewed as an improvement to the existing conditions at the Le Chamonix complex. It appears that the repairs are a necessity. D. Development Exactions: Response: Not applicable. ACTIVITY ENVELOPE (7- 10 -50) Request for an Activity Envelope and Site Plan for Bank Stabilization work must comply with the provisions and policies of Chapter 7 as provided in the following Code sections. SITE PREPARATION AND GRADING: Land Use Code Sec. 7 -20 -10 addresses standards for site preparation and grading: Page 3 of 7 3 Response: The most significant standard in this code section requires that tree mitigation occur when trees 6" d.b.h. or greater are removed. The Applicant has stated that trees 6" d.b.h. or greater that are growing near the retaining wall will be removed for construction. The construction procedure outlined by the Applicant includes implementation of a crane along Maroon Creek Road that will hoist a bucket over the Le Chamonix complex and down to the retaining wall. This, in fact, is the least obstructive way for the work to occur, resulting in the fewest trees to be removed. The Applicant has acknowledged that tree mitigation is required and is prepared to comply with the standard. Erosion control fencing has been proposed to catch any falling sediment into Maroon Creek. More detailed plans will be reviewed at building permit submittal and best management practices will be required. STEEP AND POTENTIALLY UNSTABLE SLOPES: Land Use Code Sec. 7 -20 -20 addresses standards for development on potentially unstable slopes; Response: The proposal will encroach onto natural slopes greater than 30 %, The embankment down to the Creek is very steep and could become unstable if work was performed on the slope. However, disturbance will be greatly minimized due to use of the crane. WATER COURSES AND DRAINAGE: Land Use Code Sec. 7 -20 -30 addresses water resource standards which are applicable to all development. (b) Encroachment or Channeling: Encroachment activities or channeling activities in a river, stream (including intermittent streams, pond, wet meadow, or wetland are subject to the requirements of Sec. 7 -20 -40 and 7 -20 -80 of the Code as well as other applicable state and federal statues and regulations. Response: The Applicant does not propose any work within the channel of Maroon Creek. Subsection 7- 20- 30(c)(1)(b): Drainage, General: Activities shall provide for the unimpeded flow of natural water courses and ditches. Response: The proposal does not impede the flow of natural water courses or ditches Subsection 7- 20-30(d) Irrigated Areas: (1) Not adversely affect the adequacy of water supplies available for the irrigation or agricultural kinds; and (2) Not adversely affect the exercise of any existing and decreed irrigation water right. Response: The Applicant has proposed a revegetation/tree planting plan that will utilize drip irrigation from onsite drain outlets and gutters. Subsection 7- 20- 30(g): Sedimentation: All activities and development shall: provide adequate sedimentation control throughout all phases of development, retain sediment produced by soil disturbance on site where the disturbance occurs and prohibit run -off into any water body, wetlands, or riparian areas. Revegetate clearing and grubbing as soon as possible, but in no event longer than one growing season after conclusion of development on site. Page 4 of 7 4 Response: The Applicant has stated that erosion control measures in the form of erosion fencing will catch any sedimentation that falls down the steep bank during construction. These plans will be reviewed in more detail at building permit submittal and best management practices will be required. Subsection 7- 20- 30(h): Water Quality (1) All land uses shall comply with those setbacks required by Sec. 7 -20 -80 and those setbacks required by Table 5 -1. Response: The Applicant's work is within the within the required 100' setback from Maroon Creek as outlined in section 7 -20 -80 of the Code. The Code, however has been amended to allow legitimate bank restoration projects to encroach into this established setback pursuant to table 5 -1A. (2) Activities and development shall comply with all state and federal statutes and regulations concerning the protection and enhancement of water quality (including but not limited to the requirements of all state and federal permitting programs). Response: Not applicable. (3) Activities and development shall be consistent with maintenance of the Stream Classifications for the Roaring Fork River watershed, as identified in Section 208 of the Roaring Fork Watershed Management Plan, and shall comply with state regulations pertaining to maintenance of those classifications. Response: Not applicable FLOODPLAIN HAZARD Land Use Code Sec. 7- 20- 40(cx2) addresses development within the floodplain that involves proposed improvements. The standard reads as follows: Identified and approved public and private recreational uses are permitted in the floodplain only if the approved uses do not cause a concentration of people in such areas during high food hazard probability. Any structures associated with such uses shall be subject to the provisions of subsection (b) above. Terrestrial and aquatic habitat restoration activities shall also be an allowed use in the foodplain, provided that the BOCC makes a finding that the restoration project has been designed for the purpose of restoring, or preventing further degradation of the natural, dynamic functions of the river, stream, or other body of water; the applicant shall be required to provide sufficient scientific information to establish both the existence of pre- restoration degradation and the scope and desirability of the post- restoration improvements. Acceptable scientific information may include, but is not limited to, information on channel hydrology, site geomorphology, streambed characteristics, macroinvertebrate populations, and fish populations. Applicant must also demonstrate that the scientific information provided has been generated by an individual(s) or legal entity (ies) qualified to render an assessment in all pertinent subject areas. This demonstration maybe provided in the form of a curriculum vitae (Cif for an individual, a company resume of project experience, personnel certifications and licenses, etc., or any other manner reasonable under the circumstances. Response: The Applicant will not be entering Maroon Creek, will not be altering any in channel habitat with this proposal, and the work is not within the floodplain. Page 5 of 7 WILDLIFE HABITAT: The project area does not lie within any big game ranges but is located in close proximity to Maroon Creek. Response: The CDOW was referred on this application, however no comments were provided. RIVER AND STREAM CORRIDORS AND WETLANDS: Land Use Code Sec. 7 -20 -80 establishes standards for development in streams and wetlands. All development must comply with the 100' setback from streams, creeks, and rivers unless specifically exempted from the setback. Section 7- 20- 80(c)(2) states: Bank stabilization, riparian restoration work and restoration of natural, dynamic riverine fractions (in accordance with the requirements of Section 7- 20- 40(c)(2)) may also be permitted in riparian and wetland buffer areas upon the BOCC finding that any adverse impacts will be adequately mitigated, as required by subsection (d) below. Response: Bank stabilization is permissible under the above mentioned code sections. Staff feels that the proposed project can mitigate any adverse impacts by requiring best management practices during construction and requirement of an approved replantin*/revegetation plan. Staff recommends the BOCC make a finding that adverse impacts can be mitigated. Subsection 7- 20- 80(d)(11): Mitigation Standards Specifically item #11 speaks to legitimate river restoration projects. The language reads as follows: Alterations to stream channels (including their capacity, filling and dredging) shall be prohibited unless it has been satisfactorily demonstrated, through site - specific scientific study and analysis (including an evaluation of all upstream and downstream impacts), that the proposed channel work will improve the dynamic stream channel fraction, the habitat for a diversity of species, and that future and historical public uses, such as stream navigation, recreation, and aesthetics are not diminished by the proposed channel improvements. All approved stream work must be permitted. Acceptable scientific information may include, but is not limited to, information on channel hydrology, site geomorphology, streambed characteristics, macroinvertebrate populations, and fish populations. Applicant must also demonstrate that the scientific information provided has been generated by an individual(s) or legal entity (ies) qualified to render an assessment in all pertinent subject areas. This demonstration may be provided in the form of a curriculum vitae (CV) for an individual, a company resume of project experience, personnel certifications and licenses, etc, or any other manner reasonable under the circumstances. Staff Response: The Applicant is not proposing work within the Maroon Creek channel, therefore this section is not applicable. The area proposed for work is approximately 80' above Maroon Creek. Page 6 of 7 SITE PLAN REVIEW The Applicants have requested site plan approval. This request requires a review of. (1) placement of development within an approved activity envelope; (2) development within a scenic view protection area pursuant to section 7- 20- 120(d); and (3) 7 -20 -130. DEVELOPMENT WI I IIN AN ACTIVITY ENVELOPE The Applicant's have defined an activity envelope and all development and proposed work is shown to be within that envelope. SCENIC REVIEW: Maroon Creek Road is a scenic corridor and all development must comply with the scenic standards. However, the Applicant has not proposed construction of any buildings, only reconstruction and slight expansion of a failing retaining wall. This wall will not be visible from Maroon Creek Road. LANDSCAPNG AND VEGETATION PROTECTION: The Applicant has committed to successfully revegetating the disturbed areas with riparian and native vegetation. The Applicant will be required to post a bond for revegetation of the site. PUBLIC COMMENT: Staff has not received any public comment. CONSTRUCTION MANAGEMENT: The Planning Engineer has provided comments (Attachment A) on the proposal. Specifically, erosion and drainage control plans, construction staging, revegetation, will need to be reviewed at building permit submittal. This is typically addressed at the building permit stage, and the Applicant has made representations in the application as to how these issues will be addressed. RECOMMENDATION: Staff recommends the BOCC adopt a motion approving the Le Chamonix Bank Restoration Project and Expansion/Restoration of a Legal Non - conforming Structure With Significant Changes subject to conditions outlined in the attached draft Resolution. ATTACHMENTS: A. Planning Engineer Page 7 of 7 :4 RESOLUTION OF THE BOARD OF COUNTY COMMISSIONERS OF PITKIN COUNTY, COLORADO, GRANTING ACTIVITY ENVELOPE AND SITE PLAN APPROVAL FOR THE LE CHAMONIX HOMEOWNERS ASSOCIATION BANK RESTORATION PROJECT AND EXPANSION/RESTORATION OF A LEGAL NON - CONFORMING STRUCTURE WITH SIGNIFICANT CHANGES BOCC Resolution No. -2011 Recitals Le Chamonix Homeowners Association ( "Applicant") has applied to the Pitkin County Board of County Commissioners (`BOCC ") for a one step Activity Envelope and Site Plan Review for a bank restoration project to repair a failing timber retaining wall on the north side of the building. The Applicant also requests approval for Expansion/Restoration of a Legal Non-conforming Stricture With Significant Changes due to the fact that the Le Chamonix complex resides within the 100' road setback of Maroon Creek Road, the 100' stream setback of Maroon Creek, and the side yard setback for the Lot. 2. The Le Chamonix complex is located at 1501 Maroon Creek and is within the AR -10 zone district and is legally described as the Le Chamonix Subdivision Units 1 -12. 3. The BOCC heard this application at a duly noticed public hearing on May 11, 2011 at which time evidence and testimony were presented with respect to this application. No written public comment was received during the comment period. 4. The BOCC finds that the proposal demonstrates the need for restoration of the failing retaining wall is located on the bank of Maroon Creek. This proposal, if implemented as demonstrated, will improve the bank of the Creek and improve the safety of Le Chamonix complex as a whole. 5. The BOCC further fords that the under Section 7- 20- 80(cx2) the application has been presented as a bank restoration project and has been designed for the purpose of restoring, and preventing further degradation of the bank. 6. The BOCC further finds that the Le Chamonix complex is a legal non - conforming structure, and under section 9- 50 -30, the proposal will not create adverse impacts. Restoration of the timber retaining wall will improve the function and appearance of the wall. NOW, THEREFORE, BE IT RESOLVED by the Pitkin County Board of County Commissioners that it hereby grants approval for the Le Chamonix Bank Restoration Project and Expansion/Restoration of a Non - Conforming Structure With Significant Changes subject to the following conditions, which shall run with the land and be binding on all successors in interest: The Applicant shall adhere to all material representations made in the current or prior applications or in public meetings or hearings and shall consider those representations to be conditions of approval, unless amended by other conditions. 2. Prior to submission of any future permit applications, the Applicant shall be required to submit for approval by the County Attorney and Community Development a Site Plan with an Activity Envelope in accordance with Land Use Code Section 2- 30 -20(g) and Application Manual Section 2.1.12. The above referenced approvals shall be a condition precedent to finalizatign and recordation. 3. The Applicant shall submit an earthmoving permit that identifies all areas disturbed by construction. The permit shall include a detailed revegetation plan that shows native riparian plantings and/or vegetation in the area. All revegetation shall occur within one growing season of the project's completion as represented in the application. Financial security for successful revegetation is required. A tree mitigation plan shall be submitted for the removal of any trees larger than six (6) inch DBH. 4. The Applicant shall provide a detailed construction management plan which delineates access to the site, and all disturbances, material storage, and parking areas. All disturbances shall be contained in the approved development envelope. The Applicant shall submit a drainage and erosion control plan which addresses how sediments will be contained on site and prevented from polluting Maroon Creek. 6. The Applicant shall obtain a right of way permit for Maroon Creek Road closures during construction prior to issuance of the building permit. 7. No development shall occur outside the approved activity envelope. 8. Statutory vested rights for the approval contained herein are granted pursuant to the Pitkin County Land Use Code and Colorado Statutes, subject to the exceptions set forth in Pitkin County Land Use Code, § 2 -20 -170 and C.R.S., § 24 -68 -105. The statutory vested rights granted herein shall expire on May 2014. 9. Failure to comply with the conditions of this approval may result in revocation of this approval, or any subsequent permit(s) or approval(s) related to this property, or vested rights associated with this property. NOTICE OF PUBLIC HEARING PUBLISHED IN THE ASPEN TIMES on the le day of April 2011. PUBLISHED AFTER ADOPTION FOR VESTED REAL PROPERTY RIGHTS IN THE ASPEN TIMES WEEKLY ON APPROVED AND ADOPTED at the public hearing on the 11"' day of May, 2011. Resolution No. -2011 Page 2 of 17 ATTEST: Jeanette Jones Deputy Clerk BOARD OF COUNTY COMMISSIONERS OF PnxIN COUNTY, COLORADO Rachel E. Richards, Chairwoman Date: APPROVED AS TO FORM: John Ely, County Attorney Case # 019 -11 PID#: 273514202001 thru 012 Resolution No. -2011 Page 3 of APPROVED AS TO CONTENT: Mo Houben, Community Development Director 10 A7T cg I F..j - r A PITKIN COUNTY COMMUNITY DEVELOPMENT DEPARTMENT 130 South Galena Street Aspen, Colorado 81611 (970) 920 -5526 FAX4 (970) 920 -5439 lul u 1 ; :�►`Illllul To: Mike Kraemer FROM: Catherine Berg, Planning Engineer Re: Le Chamonix DATE: April 22, 2011 After reviewing the application I propose the following conditions: ➢ A detailed drainage and erosion control plan shall be submitted with each development permit. If the total development disturbs one (1) acre or more a State Stormwater Permit shall be applied for and obtained. All historic and natural drainage patterns shall be maintained, and day lighting shall be avoided on steep slopes. Stormwater shall be detained onsite and allow infiltration of runoff prior to discharge. ➢ A detailed revegetation plan will be required. The plan shall speak specifically to the reclamation of the disturbed steep slopes. Plan shall be reviewed and approved by Pitkin County Community Development. Financial security may be required. ➢ A tree mitigation plan shall be submitted for the removal of any trees larger than six (6) inch DBH. ➢ The applicant shall submit a detailed Construction Management Plan with each development permit that addresses all phases of construction. The plan shall address all access to the site and to the steep slopes on the downhill side of the structure. All OSHA requirements shall be adhered to. ➢ A County ROW permit shall be obtained from the Public Works Department for any work within the County's ROW. ➢ The applicant shall provide adequate engineering of any retaining walls over four (4) feet in height and/or any improvements to walls over four (4) feet in height. All retaining walls shall be a maximum of seven (7) feet tall. ➢ The applicant shall apply for and obtain an Earthmoving, Clearing and Grubbing Permit for retaining wall replacement work. G�Ali, ,ems 2DA-D 622 I* I( off `7 Yhm.i� 1 !'o.�srnvirJo..l 1 7 -1 6 6177 o CC v4 S /C FAR ca U y . "o J , Davis Horn• PLANNING & REAL ESTATE CONSULTING March 3, 2011 Mike Kraemer Pitkin County Community Development Department 130 S. Galena Street Aspen, CO. 81611 RE: Le Chamonix Condominiums: Activity Envelope, Site Plan Review and Special Review for Bank Restoration (PID# 2735- 142 -02- 001 -012) Dear Mike: Davis Hom Incorporated represents Le Chamonix Association Incorported ( "Applicant ") in this land use application. Le Chamonix is a 12 unit condominium complex located at 1501 Maroon Creek Road. The complex is located across Maroon Creek Road from Aspen Highlands on the banks of Maroon Creek (see Attachment 1, Vicinity Map). The site contains approximately 2.0 +/- acres of land and is zoned AR -10. The existing improvements are a non - conforming use because multi - family dwelling units are not permitted in the zone district. Attachment 2, Le Chamonix: Existing Conditions shows the building is also a non - conforming structure because the improvements are located entirely within the 100 foot Maroon Creek Road setback and partially within the 100 foot Maroon Creek setback. The east side of the building is within the side yard setback. The topography mapping shows the structure is located on the banks of Castle Creek, approximately 80 to 90 in elevation above the Creek. The Creek's bank is very steep varying between 70 and 90 percent grades. There are multiple failing retaining walls located on the north side of the building. These retaining walls are essential to the stability of the structure and the Maroon Creek bank. This land use application seeks approval to repair the existing retaining walls to prevent failure. The applicant is requesting Activity Envelope and Site Plan Review to establish the limits of disturbance for the bank stabilization project. This request is addressed under the following headings: • Background & Existing Conditions; • Proposed Project; Land Use Review; and • Summary. 215 SOUTH MONARCH ST 0000eii OT q LQ ALICE DAVIS AICP I GLENN HORN AICP SUITE 104 • ASPEN, COLORADO 81611 • 970/925 -6587 • FAX: 970/925 -5180 adavis ®rof.net ghorn@rof.nef BACKGROUND & EXISTING CONDITIONS The Le Chamonix Condominiums were constructed in 1965. On March 25, 1974, the Board of County Commissioners adopted Resolution 74 -16 which down zoned most of the County. Under the terms of the zoning, Le Chamonix Condominiums were to be abated by March of 1979. In 1979 the Condominium complex had not been abated so on May 7, 1979 the Board adopted Resolution 79 -41 which exempted Le Chamonix and several other multi family unit buildings from the abatement provisions of the Land Use Code. Subsequent to 1979, there were a series of amendments to the Code which permitted repairs, restorations and improvements to non conforming uses and structures. The current Code includes a procedure and standards for the Board of County Commissioners to approve Restoration or Expansion of Non - Conforming Structure with Significant changes. As noted in the previous section, the structure is built on the banks of Castle Creek to the north of Maroon Creek Road. Attachment 14, Le Chamonix Condominium: Slope Analysis shows virtually the entire Creek bank behind the structure is steeper than 45 percent. There are pockets of areas with slopes less than 30 percent. These area are the locations of the existing, 46 year old timber retaining walls. On October 12, 2009 John Mechling, P.E. of CTL Thompson prepared a letter entitled "Timber Retaining Wall and Slope Evaluation Le Chamonix Condominiums, Aspen Colorado' (See Attachment 3). The letter evaluates the condition of the timber retaining walls behind each dwelling unit and the comparative stability of the slopes below the building down to Maroon Creek. Attachment 4 which is identified as Figure 1 in the letter, depicts the 12 units in the condominium complex. Unit 1 is located on the upvalley end of the complex and unit 12 is on the other end. The letter includes numerous pictures which show the condition of the retaining walls and bank behind the Condominiums. The letter finds the retaining walls behind units 1 -7 are in better condition than the walls behind units 8 -12 which are close to failing or failing. The letter also evaluates slope stability: the slope stability behind the building vanes, but in all cases something needs to be done to stabilize the slopes. The CTL Thompson letter concludes by considering the slope stability in combination with the condition of the walls. CTL Thompson recommends the development of additional retention systems behind all of the dwelling units. They propose meeting with two specialty shoring/retention contractors to consider various methods to stabilize the retaining walls and the Creek bank. Attachment 5 is a February 28, 2011 report entitled, "Le Chamonix Condominiums: Tree Resource Evaluation in Relation to Proposed Soil Nail and Shocrete Slope Stabilization Project" prepared by Jason Jones, Arborist with Aspen Tree Service Incorporated. The Report evaluates the condition of the large Colorado spruce, Douglas fir trees and aspen trees located behind the building on the banks of Castle Creek. Jason Jones states in the Report that no effort should be Spa made to save the aspen trees which are in poor condition. However, Jason makes recommendations to save as many of the Colorado spruce and Douglas fir trees as possible. PROPOSAL The Applicant has hired Thunder Construction and Yenter Companies to repair the existing retaining walls and stabilize the banks of Castle Creek located behind the building. Refer to Attachment 6, a report entitled "Soil Nail and Shotcrete Method Statements for Le Chamonix Timber Crib Wall /Slope Stabilization Repair," prepared by Yenter Companies, Incorporated. The work will consist of installing permanent soil nails and shotcrete to mitigate the old, failing timber crib walls. The shoring installation will consist of drilling, grouting and applying shotcrete from a platform suspended from a minimum 250 ton crane which will be located in front of the buildings on Maroon Creek Road. The repair will be accomplished by soil nailing through the existing walls with screw type nails. The shotcrete will add approximately six inches to the structure of the retaining walls. The construction will be based upon the February 25, 2011 Chamonix Retaining Wall Repair Construction Management Plan Letter prepared by Monty Thompson of Thunder Construction (see Attachment 7). The crane will be located in the parking lot which is contiguous with Maroon Creek Road. Parking for Le Chamonix will temporarily be relocated to the Aspen Highlands Ski Area parking lot. Attachment 8 is a February 21, 2011 letter from Doug Mackenzie, Area Mountain Manager Aspen Highlands, "Parking at Aspen Highlands." Doug's letter gives Le Chamonix residents permission to park in the Highlands lots from April 26 until October 30, 2011. It may be necessary to have limited lane closures on Maroon Creek Road during certain times. In the event of the need for limited lane closures, Thunder Construction will coordinate such closures with GR Fielding and Catherine Berg. Attachment 9 is a copy of the Le Chamonix Retaining Wall Repair Construction Management Plan, prepared by Thunder Construction and Attachment 10 is a copy of the Le Chamonix Activity Envelope and Site Plan. The Attachments 9 and 10 show that the limits of construction and the Activity Envelope must include some of the steep Creek bank on the north side of the building. As explained in the Attachments 7 and 8 land disturbance will be minimized by the construction plan which will utilize a huge crane that will suspend equipment and materials above the Creek bank. Any portion of the Creek bank which is disturbed during construction will be revegetated as soon as construction is completed consistent with the Le Chamonix Condominiums Revegetation Plan prepared by Shannon Murphy Landscape Architects which appears as Attachment 11. The Plan calls for revegetation with a grass mix designed to grow in the understory of a pine forest. Erosion control blankets are proposed to insure growth. A drip irrigation system will be used to establish the grass mix. The system is described in -3- Attachment 12, a February 25, 2011 letter from Monty Thompson of Thunder Construction, Chamonix Retaining Wall Repair Water Mitigation Letter. LAND USE REVIEW A pre - application conference summary is found in Attachment 13. This section of the land use application demonstrates compliance with a following sections of the Pitkin County Land Use Code: Section 9 -50 -20 Restoration or Expansion of Non - Conforming Structure or Use with Significant Changes; Section 7 -10 -50 Site Plan and Activity Envelope; Section 7 -20 -10 Site Preparation and Grading; Section 7 -20 -20 Steep and Potentially Unstable Slopes; Section 7 -20 -30 Water Courses and Drainages; Section 7 -20 -40 Floodplain; Section 7 -20 -50 Geologic Hazards; Section 7- 20 -80(d) River and Stream Corridors and Wetlands — Mitigation Standards Section 7 -20 -130 Landscaping and Vegetation Protection. The Land Use Code language is given in bold, and the Applicant's response follows Restoration or Expansion of Non - Conforming Structure or Use with Significant Changes Section 9 -50 -20 The Board of County Commissioners may permit modifications to a non - conforming structure or use that does not meet the standards of Sec. 9- 50 -20, subject to compliance with the standards in this section. As noted in the project description and shown on Attachment 10, Le Chamonix Activity Envelope and Site Plan the existing building is located entirely within Maroon Creek Road setback and partially within the side yard setback and the Maroon Creek setback. Additionally, the building is a non - conforming use in the AR -10 zone. This Code section enables the Board of County Commissioners to approve the wall repair. Unfortunately, the Land Use Code requires the applicant to also obtain a side yard setback variance in order to apply six inches of shotcrete to the retaining wall partially located within the easterly side yard setback. The Board of Adjustment review is a duplicative review with little, if any, public purpose. All property owners within 300 feet of Le Chamonix have already been notified of this land use review. The applicant requests the Board of County Commissioners to do whatever they can to waive the necessity for a duplicative review by the Board of Adjustment. (a) Adverse Impacts and County Land Use Policies The Board of County Commissioners finds that any adverse impacts of the non - conforming use or structure on the neighborhood or the County as a whole and any inconsistencies with County Land -4- 00000+ Use Policies in Chapter 1 to be tolerable. The proposed development is a health and safety concern which is required to stabilize the building and the Creek bank. If the proposed site development is not permitted the safety of Le Chamonix residents would be at risk and the Maroon Creek bank would be subject to erosion and failure. Repairing the retaining walls to stabilize the Creek bank and building is generally consistent with Pitkin County Land Use Policies. (b) Consistency with Master Plans The structure or use is generally consistent with adopted master plans for the area and adjacent land uses. The subject site is located within the Aspen Urban Growth Boundary and is subject to the recommendations in the 2000 Aspen Area Community Plan (AACP). The proposed Creek stabilization project is consistent with the "Parks, Open Space & Environment' section of the AACP. The Plan states that it is the adopted philosophy of the community to preserve and protect the natural environment. The Maroon Creek corridor is a significant community asset. The Aspen Highlands Village Planned Unit Development Plat dedicated the adjacent land on the downvalley side of the property to the public as open space. Stabilization of the Creek bank behind the Chamonix will preserve and protect the Creek bottom and the adjoining public lands consistent with the AACP. (C) Building Code Standards, Hardships or Improvements to Function and Appearance The applicant demonstrates that the purpose of the development is to: (1) Meet practical difficulties and hardships that arise from the existing restrictions upon repair, alteration or restoration; or (2) Improve the function and appearance of the structure. The proposed development is essential to repair existing site development. If the repairs are not made it will jeopardize the building, the Creek bank and the adjacent public lands. (d) Development Exactions and Impact Fees The applicant makes all required dedications to the County in accordance with the standards in Chapter 8 for any additional development that is approved pursuant to this Sec. 9- 50 -30. The applicant will comply with this standard. Site Plan and Activity Envelope Section 7 -10 -50 & 60 The intent of this Chapter 7 is to allow activities and development to take place where they comply with the provisions of this Land Use Code and with the Pitkin County Comprehensive Plan for the area. Compliance will generally involve avoidance of "Constrained Areas" through the Identification of an "Activity Envelope," as well as approval of a Site Plan. For purposes of Chapter 7, "Constrained Areas" include all areas included in each of the following categories, as defined -5- 0 GGGG� and regulated by this Land Use Code: (i) Areas of Statewide Interest listed in C.R.S. 24- 65.1 -101 et. seq.), (ii) steep and potentially unstable slopes, (iii) water courses, drainage channels, and areas subject to erosion, (iv) floodplain hazard areas, (v) geological hazard areas, (vi) severe or low to moderate wildfire hazard areas, (vii) wildlife habitat areas, (viii) river and stream corridors and wetlands (ix) irrigated lands for food or crop production, (x) historic preservation areas, and (xi) archeological resource areas. The Site Plan process incorporates an "Activity Envelope" approach in which the County staff works with the applicant to determine which portions of the site (if any) would permit the proposed activity or development to be conducted in compliance with this Land Use Code and in conformity with the Comprehensive Plan for the area. In general, this process will involve both a determination of (1) which portions of the site are not available for development because of the existence of Constrained Areas, and (ii) of the remaining portions of the site, which areas would accommodate the activity or development so as to minimize impacts on surrounding properties, maximize compliance with the requirements of the development standards in this Chapter 7, and maximize compliance with the Comprehensive Plan goals and objectives. In general, the defined Activity Envelope for development of primary uses shall be large enough to accommodate the proposed principal use of the property and traditional permitted accessory structures, infrastructure (roads and septic systems), and uses, but should not be significantly larger than the area needed for such structures. In the case of a site with few Constrained Areas, the defined Activity Envelope may include more than one potential building site for a new single family home. The defined Activity Envelope may include non - contiguous areas (including separate areas for septic fields, landscaping, driveways to public roads, mitigation measures required in connection with any provision of this Chapter 7, and /or areas to be disturbed only during construction on the property — including staging areas and materials storage areas). Construction of trails will not require an Activity Envelope analysis except as required by Sec. 7- 20 -50. Clearing, grading, grubbing, earthmoving that exceeds fifty (50) cubic yards, or changes in the natural drainage of the site shall occur only after an Activity Envelope has been defined and all applicable local, state and federal permits have been obtained. In addition, Site Plan Approval is required if these activities will occur on a property within a Scenic View Protection Area. Activity Envelope and Site Plan Review for a Stream Restoration Project shall adhere to all development standards in 7 -20-40 and 7 -20 -80 and shall be reviewed by the BOCC as set forth in Table 2 -1. Once an Activity Envelope has been defined, the natural grade, topography, vegetation and drainage of areas outside the defined areas shall not be disturbed except as specifically permitted in this Land Use Code. Prior to any development activity on the parcel, the boundaries of the Activity Envelope shall be identified with construction fencing, and such fencing shall remain in place until development has been completed. While it is preferable to obtain approval of an Activity Envelope as part of the Site Plan approval process, applicants who are not prepared to submit a Site Plan for a specific structure may request approval of an Activity Envelope separately. Prior to the issuance of a Development Permit, the applicant shall be required to apply for and obtain approval of a Site Plan confirming that the proposed development is consistent with the defined Activity Envelope and with other standards in this Land Use Code not considered at the time the Activity Envelope was defined. The standards in this Chapter 7 shall be used (1) to identify the Activity Envelope on a property, (ii) to review and approve the Site Plan for proposed development, and (iii) to regulate development within the Activity Envelope pursuant to the Site Plan. Development Standards in this Chapter 7 which are to be reviewed as part of Activity Envelope and Site Plan review are set forth in Table 7.1 below. Attachment 10 depicts the proposed Activity Envelope and Site Plan. The applicant has prepared the smallest possible Activity Envelope. It generally encompasses the parking -6- OOOOL16 area on the south side of the structure and approximately 20 feet located on the north side of the building. Compatibility with the existing uses, the neighborhood and consistency with the applicable master plans have all been consider and the proposed Activity Envelopes and Site Plan are a product of all these considerations. As noted in the previous section of the application and explained in Attachment 7, "Chamonix Retaining Wall Repair Construction Management Plan Letter" the construction plan seeks to avoid disturbing any of the steep slopes located on the Creek bank. Attachment 14 is a drawing which depicts the Le Chamonix Retaining Wall Repair Construction Management Plan. Site Preparation & Grading Section 7 -20 -10 (a) Grading and Fill Placement Grading and filling on a site shall take place only within a defined Activity Envelope. All grading and fill placement that exceeds fifty (50) cubic yards shall be indicated on the Site Plan. Grading and the placement of fill is not proposed. (b) Clearing, Grubbing, and Vegetation Removal Clearing or grubbing of land, or removal of vegetation shall take place only within an approved Activity Envelope, except removal of noxious weeds and 10 or fewer dead or diseased trees of a caliper of 6" d.b.h. or greater within a 12 month time period that create a hazard may occur outside of an Activity Envelope. Disposal of dead or diseased trees shall be in accordance with the Land Management Department's policy. Trees removed that contain active mountain pine beetles shall not be stored for firewood. Each Site Plan shall document compliance with the requirements of this Sec. 7- 20 -10(b) and Sec. 7 -20 -130. Clearing and grubbing is not proposed. (c) Tree Removal and Mitigation Each tree with six (6) inches or larger diameter at breast height (D.B.H.) that is removed within the Activity Envelope shall be replaced with one (1) or more trees with total D.B.H. at least equal to the caliper(s) of the tree(s) removed, to the maximum extent practicable. Any tree that (i) is diseased, or (it) is required to be removed pursuant to the provisions of Sec. 7- 20 -60, as those requirements may be varied by a wildfire expert approved by the County, may be removed and no replacement shall be required. All revegetation shall also comply with the Pitkin County Revegetation Guidelines. Required replacement trees that do not survive for at least one (1) year after installation shall be replaced at the owner's expense, and the County may require financial security for such replacement pursuant to Sec. 7- 20- 130(b)(7). Attachment 5 is a February 28, 2011 report entitled, "Le Chamonix Condominiums HOA: Tree Resource Evaluation in Relation to Proposed Soil Nail and Shotcrete Slope Stabilization Project," prepared by Jason Jones of Aspen Tree Service Incorporated. The Report notes that there are many large Douglas fir and Colorado Spruce that are growing directly below the building. In some cases the trees are growing above the existing retaining walls or directly below the walls. A few trees are growing in the walls. Jason indicates that there will be some loss of trees. The proposed construction methods are - 0 0 1 generally less invasive to trees than other methods. Certain trees located above and below the existing retaining walls will potentially need to be removed to allow access by a basket suspended by a crane. There needs to be a careful evaluation in the spring with the contractor to determine which trees should be removed. The applicant commits to work with Jason to complete this evaluation and inventory the trees which will be lost. (d) Protection of Natural Terrain The County Planning Engineer or Community Development Director shall suggest and may require design and construction techniques that lessen or mitigate any physical and visual damage caused by the proposed activity or development to Constrained Areas or to the natural terrain, stream vegetation, and other natural features of the landscape within the Activity Envelope. Techniques shall Include, but are not limited to: (1) REVEGETATION Revegetation and reforestation utilizing native or similar horticultural material, to be completed during the first planting season after construction; where vegetation is removed, it shall be replaced with vegetation that will reach similar density and height to that removed within two (2) years following conclusion of construction. Attachment 1 I is the Le Chamonix Condominiums Revegetation Plan prepared by Shannon Murphy Landscape Architects. The plan shows the proposed area of revegetation and includes revegetation notes and a seed mix. (2) TOPSOIL Removing and saving topsoil prior to any grading or excavating and replacement for revegetation. Topsoil will not be removed. (3) WEED PREVENTION Weed prevention, thistle management, and prohibition of non - native plants, which may include reducing animal damage to vegetation cover, as determined by the United States Soil Conservation Service Soil Survey. The applicant shall follow acceptable common practices to avoid the spread of weeds. There will be minimal soil disturbance so weed should not be a problem. (4) UTILITY INSTALLATION Locating and installing utilities in a manner minimizing damage to the natural environment and scenic quality. The contractor will locate all utilities prior to construction. New utility installation is not proposed. (5) EROSION, SEDIMENTATION, AND STORMWATER MANAGEMENT (a) Land uses shall: 1. Not cause erosion problems and, if practicable, retain all soil on site; 2. Minimize disturbance of natural vegetation and soil cover; 8- 13L 03 3. Ensure that all cuts and fills are adequately designed and vegetated to control erosion as well as stability of the slope area; 4. Ensure that natural drainage patterns are preserved and protected from increased water flows that subject existing channels and adjacent areas to increased erosion; and 5. Preserve natural vegetation and soil cover within those buffer distances adjacent to rivers, streams, lakes, reservoirs and wetlands /riparian areas established in Sec. 7- 20-80. (b) Mitigation measures identified in an approved erosion, sedimentation, or stormwater management plan shall remain in place until revegetation is viable. Attachment 7 February 25, 2011 "Chamonix Retaining Wall Repair Construction Management Plan Letter" prepared by Monty Thompson of Thunder Construction indicates that a safety /erosion control fence will be located approximately at the 8030' elevation contour. The fence will help control any erosion from entering Maroon Creek and also act as a safety fence for any objects dropped during construction. As noted in Attachment 9, Le Chamonix Retaining Wall Repair Construction Management Plan, prepared by Thunder Construction, the construction process will involve a small amount of water mitigation to help relieve the existing and proposed wall structures from undue water pressures and erosion. The contractor is proposing to gather the day lighted drain outlets and new roof gutter downspouts as needed and combine them with a drip irrigation system across the length of the building. The drip irrigation will help supply water to existing trees and vegetation. The drain system will be sized to accommodate the 10 year storm event. Final water mitigation plans will be submitted with the Earthmoving permit. Steep and Potentially Unstable Slopes Section 7 -20 -20 The following provisions shall apply whenever steep slopes or potentially unstable slopes occur within the Activity Envelope, but do not apply when the Activity Envelope have been defined to avoid such areas. The steep bank of Castle Creek is located immediately behind the building. Refer to Attachment 14, a Slope Analysis, prepared by High Country Engineering. As noted in the Proposed Project section of the application, the applicant will seek to minimize disturbance of the steep slopes by utilizing a crane and basket to avoid touching the ground. Slope disturbance should be very minimal. Slope stability is addressed in Attachments 5 and 6 as well as Attachment 15, a letter from Roger Pihl, P.G., of Golder Associates, Incorporated, entitled "Geologic Hazard Evaluation, Le Chamonix Condominiums, Maroon Creek Road, Pitkin County Colorado" OOGU J 1 Water Courses and Drainages Section 7 -20 -30 This section demonstrates compliance with the Land Use Code standards for Water Courses and Drainage. (a) Encroachment or Channeling Encroachment or channeling activities in a river, stream (including intermittent streams), pond, wet meadow, or wetland are also subject to the requirements of Secs. 7 -2040 and 7 -20-80 of this Land Use Code, as well as all other applicable state and federal statutes and regulations (including, but not limited to the U.S. Army Corps of Engineers permitting requirements of Section 404 of the Federal Clean Water Act). The applicant is not proposing to alter any rivers, streams, ponds wet meadows or wetlands on the site or in the site vicinity. (b) Drainage (1) GENERAL Activities and development shall provide for: Maintenance of historical flow patterns and runoff amounts to reasonably preserve the natural character of an area and prevent property damage attributable to runoff rate and velocity increases, diversions, unplanned ponding and /or stormwater runoff; The unimpeded flow of natural water courses and ditches; Adequate drainage for all low points; A drainage system designed to account for an entire drainage basin capable of accommodating runoff from a proposed development and, where applicable, the runoff from areas adjacent and upstream; Maintenance of drainage systems; and On -site treatment of stormwater by use of best management practices designed to detain and allow infiltration of runoff prior to discharge to any water body. (2) RUNOFF VOLUMES Runoff volumes and peaks within a development site and in areas affected by runoff from a development site shall not exceed the runoff levels attributable to the undeveloped site as determined by a professional engineer licensed in the State of Colorado. Refer to Attachment 12 which describes the proposed drainage plan. (c) Groundwater Activities and development shall not result in the introduction of any contaminants to groundwater, or interfere with any recharge area or aquifer. The applicant shall comply with this Land Use Code standard. 10- OOGO.�G (d) Irrigated Areas Activities and development shall: (1) Not adversely affect the adequacy of water supplies available for the irrigation of agricultural lands; and (2) Not adversely affect the exercise of any existing and decreed irrigation water right. As indicated in Attachment 12, the applicant shall utilize a drip irrigation system to water trees on the Castle Creek bank. (e) Irrigation Ditches Activities and development shall: (1) ACCESS Provide for access to irrigation ditches by ditch owners and to the public if a ditch is to be, or is part of the Pitkin County Open Space and Trails System or other public property. (2) PREVENTING LEAKAGE Ensure that no building shall be constructed immediately downhill of a ditch unless the ditch can be placed in a culvert, lined, or otherwise treated to avoid leakage of water downhill towards the building. (3) AVOID FLOODING Design land uses to avoid flooding problems from flood irrigation. (4) AVOID SEEPAGE Place basements and soil absorption on -site wastewater treatment systems in locations where they will not be impacted by flood irrigation or seepage from irrigation ditches. There are no irrigation ditches on the property. (t) Sedimentation Activities and development shall: (1) CONTROL DURING CONSTRUCTION Provide adequate sedimentation control throughout all phases of development. (2) SEDIMENTATION Retain sediment produced by soil disturbances on site where the disturbance occurs and prohibit run -off into any water body, wetlands, or riparian area. (3) REVEGETATION Revegetate clearing and grading as soon as possible, but in no event longer than one growing season after conclusion of development on a site. The applicant shall comply with these standards. (g) Water Quality (1) All land uses shall comply with those setbacks required by Sec. 7 -20 -80 and those setbacks required by Table 5 -1. (2) Activities and development shall comply with all state and federal statutes and regulations concerning the protection and enhancement of water quality (including but not limited to the requirements of all state and federal permitting programs). -11- n0U u:� (3) Activities and development shall be consistent with maintenance of the Stream Classifications for the Roaring Fork River watershed, as identified in Section 208 of the Roaring Fork Watershed Management Plan, and shall comply with state regulations pertaining to maintenance of those classifications. The applicant shall comply with these standards. (h) Efficient Water Use Activities and development shall emphasize the most efficient use of water, including, to the extent permissible under law, the re- cycling and reuse of water. The applicant will comply with Code standards. Floodplain Hazards Section 7 -2040 This section of the application demonstrates compliance with Section 7 -20 -40 of the Code. (1) Floodplain Maps (1) In addition to the Pitkin County Floodplain Regulations, the standards in this section apply to mapped floodplain hazard areas as depicted in the Federal Emergency Management Agency (FEMA) Flood Insurance Rate Map, National Flood Insurance Program (June 4, 1987, and including any subsequent amendments to that map) and areas determined by the County Floodplain Administrator to be in flood hazard areas. (2) Where a property owner believes that the mapped floodplain hazard areas shown on the FEMA Flood Insurance Rate Map are inaccurate, the property owner may request that FEMA process an amendment to that map, or may present alternative mapping to the County Engineer, who may accept such mapping as an indication of the floodplain area only if the County Engineer believes the alternative mapping to be more accurate than the FEMA Flood Insurance Rate Map. (3) Where the 100 -year or intermediate regional flood has not been established, a property owner may conduct a floodplain study to determine the boundaries of the floodplain. The property owner should consult with the County Engineer to determine the appropriate methodology for the floodplain study. (4) Where the 100 -year or intermediate regional flood has not been established by the FEMA Flood Insurance Rate Map pursuant to subsection (1) above, or by a property owner study pursuant to subsection (3) above, this regulation shall apply to all lands within an area that is twenty (20) horizontal or five (5) vertical feet (whichever land area is greater) from the existing high water line on any river, stream or material drainage channel, and any area that the County Flood Administrator determines to be a flood hazard area. It shall be the burden of the applicant to demonstrate that the property seeking development approval is not within a floodplain hazard area. (b) General Standards (1) All activity and development is prohibited within the 100 -year floodplain except as specifically permitted in this subsection (b) or by subsections (c), (d), or (e) below. (2)Within the 100 -year floodplain, no use, fill, construction, excavation, embankment, or alteration on or over any portion of the floodplain shall be permitted that would result in any of the following: The storage or processing of materials that in times of flooding are buoyant, flammable, explosive, or otherwise potentially injurious to human, animal or plant life. -12- noUU The disposal of garbage or other solid waste materials. The human occupation of structures either fixed or mobile, permanent or temporary. Substantial solid debris being carried downstream by floodwaters. Any obstruction that would impair the flow or storage capacity of a floodplain so as to cause foreseeable damage to others either within or outside of floodplain boundaries. A substantial increase in sedimentation or erosion. The infiltration of floodwaters into on -site water supply and wastewater disposal systems that would impair their functioning or pollute the stream. Damage to or destruction of aquatic ecosystems, including but not limited to, wetlands and riparian habitat areas. The proposed development is located approximately at least 50 to 60 feet above the Maroon Creek floodplain. Geologic Hazards Section 7 -20 -50 Roger Pihl, P.G., evaluated the site for geologic hazards as documented in Attachment 15. The site is not impacted by any of the geologic hazards identified in the Pitkin County Land Use Code with the exception of avalanche areas. There could be small avalanches behind the structure to the Creek. Development is not proposed within the avalanche hazard area. The building is located above the slide area. River and Stream Corridors and Wetlands — Mitigation Standards Section 7 -20 -80 (d) Section 7 -20 -80 c. 2. permits bank stabilization with in "riparian and wetland buffer areas upon the BOCC funding that any adverse impacts will be adequately mitigated, as required by subsection (d) below." This section of the application demonstrates compliance with the mitigation standards. (d) Mitigation Standards Any disturbance of the buffer area must be reclaimed by regrading and revegetation in accordance with the Pitkin County Revegetation Guide or as directed by the Pitkin County riparian expert, the U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, or Colorado Division of Wildlife, and compliance with such standards shall be included as a condition of any approval. In addition, the following standards shall apply: Utility corridors in buffer areas shall be located at the outside edge of the buffer. Utility corridors are not proposed. 2. Access roads for utility maintenance shall be located outside the buffer area. -13- 000013 No access roads are proposed. 3. Access for utility maintenance in buffer areas should be at specific points rather than parallel to the utility corridor. There is no need to have access for utilities. 4. Development shall incorporate specific measures designed to reduce erosion and prohibit sedimentation; no development that will increase stream sedimentation and suspension loads shall be permitted. The construction shall follow the practices outlined in Attachments 7 and 12. 5. Development shall comply with Sec. 7 -20 -30 and those stream setbacks contained in Table 5 -1. Attachment 10, the Activity Envelope and Site Plan, shows that some of the existing timber walls which will be repaired are located within the 100 foot Creek setback. The repair to the walls will stabilize the bank and may be approved as an exception to the Code standards pursuant to Section 7 -20 -89 c. subject to compliance with the mitigation standards. 6. Removal or disturbance of vegetation in riparian and wetland buffer areas shall be avoided to the maximum extent practicable. The applicant shall comply with this standard. 7. Areas where vegetation in wetland or riparian buffer areas is disturbed or removed shall be revegetated as quickly as possible, but in no event later than one growing season following conclusion of construction activities in the area. The applicant shall comply with this standard. Refer to Attachment 11. 8. Channelization of streams is prohibited; development shall be designed to fit the channel rather than allowing changes in the channel in order to fit the development. The applicant is not proposing to channel the Creek. 9. Perennial stream channels shall be bridged whenever possible; when this is not practicable, culverts shall be designed to avoid plugging and prevent washouts. There are not any perennial streams on the property. 10. Development shall not result in the raising of water temperatures. The applicant will not take any actions which will affect water temperatures. 11. Alterations to stream channels (including their capacity, filling and dredging) shall be prohibited unless it has been satisfactorily demonstrated, through site - specific scientific study and analysis (including an evaluation of all upstream and downstream impacts), that the proposed channel work will improve the dynamic stream channel function, the habitat for a diversity of species, and that future and historical public uses, such as stream navigation, recreation, and aesthetics are not diminished by the proposed channel improvements. All approved stream work must be permitted. Acceptable scientific information may include, but is not limited to, information on channel hydrology, site geomorphology, streambed characteristics, macroinvertebrate populations, and fish -14- 000014 populations. Applicant must also demonstrate that the scientific information provided has been generated by an individual(s) or legal entity lies) qualified to render an assessment in all pertinent subject areas. This demonstration may be provided in the form of a curriculum vitae (CV) for an individual, a company resume of project experience, personnel certifications and licenses, etc, or any other manner reasonable under the circumstances. This standard is not applicable to this application. Section 7 -20 -130 Landscaping and Vegetation This section of the land use application demonstrates compliance with Section 7 -20 -130, Landscaping and Vegetation Protection. Code standards appear in bold followed by the applicant's responses. Section 7 -20 -130: LANDSCAPING AND VEGETATION PROTECTION All development in Pitkin County shall comply with the Pitkin County Landscape Guidelines and portions of development adjacent to public roads shall comply with the Roadway Landscaping Guidelines contained in the Pitkin County Asset Management Plan. In case of conflict between the provisions of these two documents and the standards below, the guideline documents shall apply. (a) Purpose These regulations are intended to preserve existing vegetation on development sites to the maximum extent consistent with the permitted development, and to ensure that specific types of man made improvements are screened from view in order to preserve the rural character of the County, and to prevent the use of landscaping in ways that would compromise the rural character of the County. (b) General Provisions (1) PROTECTION OF NATURAL VEGETATION In order to protect the rural character of Pitkin County, natural vegetation should be preserved to the maximum extent practicable, and any installed landscaping shall use the species plant materials naturally occurring on the site or on neighboring properties (except for flower gardens). Restrictions on removal of natural vegetation, and requirements for revegetation, are set forth in other portions of this Chapter 7. The proposed repair to the timber retaining walls does not compromise the rural character of the area and in fact enhances this character. The repair of the retaining walls will stabilize the slope and help avoid any vegetation loss. -15- 000015 (2) CONFORMANCE WITH WILDFIRE REGULATIONS In the event the provisions of this See. 7 -20 -130 conflict with any provisions of Sec. 7 -20- 60, as those requirements may be varied by a wildfire expert approved by the County, the provisions of See. 7 -20 -60 shall govern. Development will comply with wildfire regulations to the maximum extent possible. Branches will be pruned, but the large Douglas fir and Colorado spruce trees will not be removed. (3) BERMS Berms may be incorporated into any required landscaping, buffering, or screening area, provided that the County determines, during the development approval process, that the proposed berms will not cause drainage or erosion problems. No installed berm shall have a slope of greater than four -to one (4:1), nor a height greater than four (4) feet above grade. New berms are not proposed. (4) LANDSCAPE ENCLOSURES Landscaping shall not be used to mark or enclose the boundary of a parcel, or to privatize an otherwise public viewplans. Use of Indigenous shrubs or trees to enclose a portion of the property immediately surrounding a dwelling, barn, and/or accessory buildings (as opposed to the entire property or a large area of the property) are permitted if made to resemble similar windbreaks located near older properties in Rural Areas of the County. The standard is not applicable (5) VISIBILITY CLEARANCE All landscaping shall be installed and maintained so that it does not interfere with the ability of drivers to see nearby traffic at the intersection of any driveway with a public road, or at the intersection of two public roads. The landscaping proposed is minimal and will not interfere with the ability of drivers to see nearby traffic. The new landscaping is grass and is on the back side of the building. (6) UTILITY EASEMENTS Whenever the provisions of this Sec. 7 -20 -130 would require the installation of trees or shrubs over or on utility easements, where branches or roots might interfere with utility lines or pipes, the required location for such trees and shrubs shall be modified to require installation at the closest location that would avoid potential conflicts with utilities and would enable the trees and shrubs to serve the same landscaping purpose. There are no conflicts between utility lines and landscaping. (7) FINANCIAL SECURITY The Community Development Department may require financial security in a form acceptable to the County Attorney to ensure completion of installation of all required landscaping and /or successful establishment of plants. 16 000010 The minimal landscaping proposed should not require a financial security to insure its implementation. (8) MAINTENANCE All plants shall be maintained continually in a healthy condition in accordance with generally accepted professional horticultural standards and practices. Within areas required to be landscaped with installed plant materials, plants that die or are unhealthy shall be replaced. Landscape areas shall remain free of weeds, litter, junk, rubbish and other nuisances and obstructions. The applicant will comply with this standard when applicable. c) Required Landscaping in Rural Areas In the Rural Area: (1) Landscaping is required for the following purposes: (1) to screen satellite dishes and other telecommunications equipment when located within five hundred (500) feet of adjacent public roads and visible from such roads, and (ii) to screen parking areas and service areas when viewed from adjacent public roads, (iii) where necessary to comply with the standards of Secs. 7- 20 -70, 7- 20 -80, or 7 -20 -720, and (iv) to revegetate disturbed areas. (2) Landscape treatments shall cluster shrubs and trees into groupings similar to those naturally occurring on the site or neighboring sites, shall use indigenous species of shrubs and trees, and shall not be installed in regularly spaced lines or rows, unless more specific provisions of Secs. 7- 20 -70, 7- 20 -80, or 7 -20 -720 require a different treatment. This standard is not applicable. SUMMARY This application seeks approval from the Board of County Commissioners to repair the existing 46 year old timber retaining walls which are locate on the banks of Castle Creek behind the Chamonix Condomiums. The applicant has devised a construction plan which will create minimal impact on the Creek bank. The following attachments are included with this application: Vicinity Map 2. Le Chamonix Existing Conditions Map 17 0000-t( 3. October 12, 2009 John Mechling, P.E. of CTL Thompson prepared a letter entitled "Timber Retaining Wall and Slope Evaluation Le Chamonix Condominiums, Aspen Colorado' 4. Le Chamonix Development Plan, Figure 1 from the CTL Thompson letter February 28, 2011 report, "Le Chamonix Condominiums: Tree Resource Evaluation in Relation to Proposed Soil Nail and Shocrete Slope Stabilization Project" prepared by Jason Jones, Arborist with Aspen Tree Service Inc. 6. "Soil Nail and Shotcrete Method Statements for Le Chamonix Timber Crib Wall /Slope Stabilization Repair" prepared by Yenter Companies, Inc. February 25, 2011 "Chamonix Retaining Wall Repair Construction Management Plan Letter" prepared by Monty Thompson of Thunder Construction February 21, 2011 letter from Doug Mackenzie, Area Mountain Manager Aspen Highlands, "Parking at Aspen Highlands 9. Le Chamonix Retaining Wall Repair Construction Management Plan, prepared by Thunder Construction (11 x 17 and 24 x 36 inch plan) 10. Le Chamonix Activity Envelope and Site Plan 11. Le Chamonix Condominiums Revegetation Plan prepared by Shannon Murphy Landscape Architects 12. February 25, 2011 letter from Monty Thompson of Thunder Construction, Chamonix Retaining Wall Repair Water Mitigation Letter 13. Pitkin County Pre - Application Conference Summary Sheet 14. Slope Analysis prepared by High Country Engineering, Incorporated 15. Letter from Roger Pihl, P.G., of Golder Associates, Incorporated, "Geologic Hazard Evaluation, Le Chamonix Condominiums, Maroon Creek Road, Pitkin County Colorado' 16. Fee Agreement 17. Authorization letter 18. Letter from Rick Jones, Licensed Attorney establishing ownership of Le Chamonix Condominiums in 000018 19. Property Owners within 300 Feet Please call if you have questions or need additional information. Sincerely, DAVIS HORN INCORPORATED GL N HORN AICP -19- 000Q17 I ATTACHMENT �" VICINITY MAP: 44 (iD P d "as now dTE P d "as now Ca Rd 13 . ..... .. . ... . ........ . LE CHAMONIX: EXISTING CONDITIONS MAP 5 TTACHMENT 2 / / LEGEND mar vEOVSru �' WYiyry 3q1 yµ11gE N1:CS2 91PPCRi (qLW mxcrca avvai wwui • /••�' woo van woo await cauiw CTL THOMPSON ATTACHMENT October 12. 2009 Le Chamonix Condominiums HOA c/o Mr. Todd Mitchell 1280 Ute Avenue, Unit #7 Aspen, CO 81611 Subject: Timber Retaining Wall and Slope Evaluation Le Chamonix Condominiums Maroon Creek Road Aspen, Colorado Project No. GS06365 -145 This letter provides the results of our evaluation of existing timber retaining walls and slopes at the rear of the Le Chamonix Condominium building. We performed a detailed field reconnaissance adjacent to each unit tojudge the condition of the existing timber walls and observe slope conditions, developed cross - sections showing the existing conditions, performed stability calculations, rated the condition of the existing timber walls and slopes and discuss conceptual retention methods. We believe the existing timber walls were constructed in the mid to late 1960's. Construction plans were not available. Several decks have been constructed in recent years. In some cases, the loads from new deck construction surcharges the existing timber walls. A document search indicates that structural engineering plans were prepared for decks constructed adjacent to Units 3 and 7. It appears that no geotechnical engineering consultation related to new deck construction was performed. Structural engineering plans required the consultation of a geotechnical engineer. We are not aware if building permits were obtained for the deck constructions. We did not check if new decks were built to applicable building codes. The existing timber wall configurations and slopes down to Maroon Creek were documented with a tape measure, Brunton compass and a "smart" level. The "smart" level measures degree of slope along a 4 foot long level. Steeper slope sections were not accessible and were estimated with the 'smart" level. These slopes are too steep to walk on. The existing conditions occurring at the rear of each unit are shown on photographs in Appendix A and on sketches in Appendix B. The 000022 sketches show a generalized condition. The number and height of existing timber walls and the slopes varies adjacent to each unit. Subsequent to our field reconnaissance, we rated the conditions of the timber walls and existing slopes from a geotechnical perspective. The age of the timber walls was considered. We rated the condition on a scale of 1 to 10. We considered the condition of wood timbers and the displacement that has occurred to each wall. A rating of 1 represents a case where the timber walls have failed and the slope below the wall appears only marginally stable. A rating of 10 represents a timber wall in excellent condition and only low level of concern of slope movements below the walls. A value of 7 represents a timber wall we consider in good condition and relatively stable appearing slopes below the walls. The individual ratings are provided below. Unit Number Rating i I 1 7 I 2 i 7 I 3 7 4 7 I 5 7 j 1 ; 6 7 7 7 11 12 3 We performed calculations to judge the comparative stability of the existing timber walls and the slopes below the building down to Maroon Creek. In order to evaluate slope stability, it is necessary to define the slope geometry, including the general profile of soil and bedrock, estimate the strength of the materials that make up different zones within the soil profile, and determine ground water conditions. The geologic conditions influence the soil strength and ground water conditions. The chosen strength components and ground water location are major influences on the computed theoretical factors of safety. , E CHAMONIX CCNOOMINIUMS HGA .E CHAMONIX CGNDOMINIUMS �QGJECT NO 6505165145 . b509650001141 -o gre 6505 :65101 Inc 000023 9 3 10 2 11 12 3 We performed calculations to judge the comparative stability of the existing timber walls and the slopes below the building down to Maroon Creek. In order to evaluate slope stability, it is necessary to define the slope geometry, including the general profile of soil and bedrock, estimate the strength of the materials that make up different zones within the soil profile, and determine ground water conditions. The geologic conditions influence the soil strength and ground water conditions. The chosen strength components and ground water location are major influences on the computed theoretical factors of safety. , E CHAMONIX CCNOOMINIUMS HGA .E CHAMONIX CGNDOMINIUMS �QGJECT NO 6505165145 . b509650001141 -o gre 6505 :65101 Inc 000023 W The area behind the building is not accessible to a drilling rig to advance exploratory borings. Subsurface conditions were assumed based on surficial exposure, conditions in excavations observed adjacent to the site and review of geologic mapping. A bedrock outcrop was identified in the slope between the building and Maroon Creek. The outcrop appears to be siltstone and limestone of the Chinle Formation. The approximate location of the outcrop is shown on Figure 1. During 1997, micropiles were installed below a portion of the building. We do not have installation records identifying subsurface conditions at the micropile locations. The project was performed under Aspen /Pitkin County Building Department Permit #7 -697. Mays Construction of Grand Junction performed the work. We request the HOA obtain the construction records and provide us the available information. The geometry in our slope stability models was from cross - sections. The subsurface profile adjacent to Units 1 through 4 appears to consist of comparatively thick colluvium soils above bedrock. The bedrock appears to be relatively near the surface on the slopes behind Units 5 through 8. The subsurface adjacent to Units 9 through 12 may be slope debris over comparatively deep bedrock. Slope debris soils are likely less dense and weaker than the colluvium soils to the west. Soil strengths were estimated based on back calculations to an assumed factor of safety (FOS). The presence of large mature trees provides significant resistance to wall and slope movements. The resistance from trees is not considered in our analyses. Deck column loads determined by the structural engineer and assumed building loads were Included in our analysis. We evaluated the relative slope stability using the computer program SLOPE/W, developed and distributed by GeoSlope International. Stability analyses included global stability of the existing slopes down to Maroon Creek and the stability of the existing timber walls. In discussions that follow, the term "factor of safety" is used. This term describes the ratio of the strength available to resist sliding compared to forces tending to cause sliding. A factor of safety of 2.0 means the strength exceeds the driving forces by 2.0 times. For long -term stability, conventional practice is to attempt to achieve a factor of safety of 1.5. Site terrain can render achieving a factor of safety of 1.5 not practical at some sites. We believe the slopes from the rear of the building down to Maroon Creek currently exist at a relative factor of safety ranging from 1.1 to 1.4. Assumptions were required regarding the subsurface profile and soil strength and the existing retaining walls. The results are significantly tempered with our engineering judgment, experience and site observations. The results of our stability calculations are shown on the Table below and graphic output of our analyses is shown in Appendix C. I CHAMONIX CONDOMINIUMS HOA 3 E C-AMONIX CONDOMINIUMS ROJECT NO GS05365145 .1 Vnmf b5e5]FS 145 l' frr 000024 Factor of Safe Existing Timber Slope Walls M Units 1 through 4 1.0 1.2 Units 5 through 8 0.8 1.4 Units 9 through 12 0.7 1.1 We recommend that additional retention systems be installed in the areas behind Units 9 through 12. This new retention system should be considered a high priority. The existing condition of timber retaining walls in the area vary from poor to failed. Repair or reconstruction of the existing timber walls does not appear to be a practical approach. The walls should not be removed. The affects of a timber wall failure on the decks above these walls needs to be considered by the client. If a wall failure occurs, it is likely that a deck failure will also occur. Our recommendation is that additional retention adjacent to Units 9 through 12 should be made as soon as possible. The stability of the slopes below these units is considered only marginally stable. Deck foundations should be evaluated. New foundations for the decks may be required. We recommend additional retention systems be installed in the area behind Units 5 through 8. The existing timber retaining walls vary from a good to poor condition. Repairs or reconstruction of the existing timber walls does not appear to be practical. We believe the installation of new retention systems be considered a priority. Failure of an existing timber retaining wall could result in failure of the decks above these walls. The presence of the bedrock outcrop on the slope below these units is positive from a global stability perspective. Deck foundations should be evaluated. New foundations for the decks may be required. The timber retaining walls adjacent to Units 1 through 4 are in comparatively good repair. The stability of the slope below these walls is considered questionable. We believe it would be best to install additional retention systems in the area behind these units. As a minimum, a monitoring system including several survey locations is recommended. Deck foundations should be evaluated. New foundations for the decks may be required. We are planning to meet with two specialty shoring /retention contractors at the site. These contractors can provide recommendations for the installation of new retention systems or possibly methods to enhance the conditions of existing timber walls and the slope between the building and Maroon Creek. Installation methods to install new deck foundations can also be addressed. We believe that the installation of micropiles extending from a cap beam at the ground surface, through the overburden soils and into the bedrock may be a reasonable retention system. It may be possible to locate the cap beam on, or at the toe of the existing timber walls. The . E DHAMONIX CDNDOMINIUMS HOA -E CHAMONIX CONDOMINIUMS =R4 IFCT NO 3505'65145 . X516 ;u4 .CS55J55 ta5t3m. 000025 use of soil nails or soil anchors appears would be appropriate if constructible. Limited site access may make the installation of soil nails or soil anchors not practical. We will provide an additional letter after site meetings with contractors. We appreciate the opportunity to work with you on this project. If you have questions, please call. Very truly yours. CTL I THOMPSON, INC. John,Me4htin6, P.E. 8ragcb Wanagec JN(cd / S11AM ^MX C0NDOMINM9S HOA L ':9Ah1ONIX CJN(DrM UJMS A',ACT NO T'AS65 -145 .SUVE!i)J 4',l ^f psbSGS 6 5 000026 d z d rn LL Y U c 0 O ca a O L U w 7 O Y V 0 L m cc O Y O O U c 0 O ca C co a c a� E 0. 0 a� a� 0 v v� M LO O N O Z Y U d O a 000021 APPENDIX A PHOTOGRAPHS F f HAMC�NIA CONGUMINWMS WA A iHAMCNIX CONDOMINIUMS r H,)JECT NO GS053CS 145 0. O ot028 La DECK UNIT 1 DECK UNIT 2 LE CHAMONIX CONDOMINIUMS HOA LE CHAMONIX CONDOMINIUMS PROJECT NO GS05366.145 5.1G5 U5.000k145Q Lotler,GS0536S 146 L] Figums A to Ad dm A -1 firm T7.0 DECK UNIT 3 DECK UNIT 4 LE CHAMONIX CONDOMINIUMS HOA LE CHAMONIX CONDOMINIUMS PROJECT NO GS05365 145 S. �GSOS36S OOO145U3 LetluNG506366145 L3 Fpuros A4 to AA. EOc A -2 000030 la LE CHAMONIX CONDOMINIUMS HOA LE CHAMONIX CONDOMINIUMS PROJECT NO GS05365 145 5 SXS."1145S3 L- tt.WG505365 115 LJ Figw.. A-1 m A4 d, DECK UNIT 5 DECK UNIT 6 A -3 000031 0 DECK UNIT 7 DECK UNIT 8 LE CHAMONIX CONDOMINIUMS HOA LE CHAMONIX CONDOMINIUMS PROJECT NO GS06365 -145 S �GSOSM6. W 14413 Latten\GS05M5 145 L] Fogums A 1 to Ad eoc A-d 000032 La f �1 �a °'"%ml, -. MI A DECK UNIT 9 I DECK UNIT 10 i ( �L du • x� LE CHAMONIX CONDOMINIUMS NOA A-5 LE CHAMONIX CONDOMINIUMS PROJECT NO. GS06365-145 SAMSSl50001145'•J. LeSBn1GS05555 145 L3 Figures A 110 A4. aoc 000033 Li DECK UNIT 11 DECK UNIT 12 LE CHAMONIX CONDOMINIUMS HOA LE CHAMONIX CONDOMINIUMS PROJECT NO GS05366 145 5'.IGWSMS.00 AW3 -.". IG505365 I45 Ll Figures A4 to A 5 doc A-6 000034 LAW Retaining at Unit 11 Retaining at Units 10 and 9 LE CHAMONIX CONDOMINIUMS HOA LE CHAMONIX CONDOMINIUMS PROJECT NO. GS06366 146 S I SBS366 BBNI46U LotutioGS85885165 L] fipurm A 1 to A_8 Coc A -7 000035 Tree at Unit 1 LE CHAMONIX CONDOMINIUMS HOA LE CHAMONIX CONDOMINIUMS PROJECT NO GS05365.145 S IG8p6]i I W11"Q LN10n!G5 SMS 1� LJ Fllu A 1 W Ad Eoc A-B 000036 Retaining at Units 11 and 10 �r SKETCHES '. t CHAMON+% CCNUOMIMUMS HUA LE CHAMONA COW)WINIUMS P ROJEC7 NO. GUMS 145 i'GSO5165 O5m1451, Lett> wG55536S 1451 i e,•c 000037 CTS. THOMPSON I - j 000038 CTS ,THOMPSON �� t 4o 0000,0­7 CTLITHOMPSON A 000041 CTS THOMPSON 0 'if I I r uuU4i L WE CTLiTHOMPSON 7 l f - nr r - u.UUU42 CTLiTHOMPSON 000043 CTL,THOMPSON r J 74- 1 .1 t_A , , 0 o 000044 1 t CTL. , THOMPSON (a a l ICJ (E9 V i { t L_ V 0F(5045 1g, CTLiTHOMPSON 0 0 U 40 4/ - 1; -4 v CTLITHOMPSON Ni e l , I lim ATt v m _; 9, CTL al - - ' CTL;THOMPSON t "v � 4 1 � 1 r ,. 000049 F-.T.J-Zwrlm SLOPE STABILITY RESULTS LE CHAMONIX CONDOMINIUMS HOA LE CHAMONIX CONDOMINIUMS PROJECT NO, G305365 -105 5 145 L) JnC o0ou"vci 809 0 Units 1 through 4 a08 • Existing Timber Walls 807 Building Load 806 Slip Surface Column Load 8 05p -T-- -- ♦ ♦ Name: Timber wall fill 804 Unit Weight: 130 pcf Cohesion: 75 psf I� Phi: 20 8 03 � 8 02 0 \ 0 801 High Ground Water 800 (6 0) W 7 99 798 7 97 796 7 94 93 Name: Bedrock Name: Colluvium and trees Unit Weight: 120 pcf Cohesion: 300 psf Phi: 42 ° 7 921 1 ____I .. --I- __ .. i_ _ -_ 1 - - \0 0 10 20 30 40 50 60 70 80 90 100 110 120 Project No. GS05365 -145 Distance Fig. C -1 000051 8 04 Units 1 through 4 8 of 4 Slope 8 07 Building Load 806 Slip Surface Column Load 8.05► --r- -- f ► ♦ Name: Timber wall fill I' s Da Unit Weight: 130 pcf Cohesion: 75 psf h� Phi: 20 ° 8 03 O 8 02 \ 0 0 801 x C High Ground Water °— a 00 m aD W 7 99 798 7 97 7 95 794 7 93 Name: Bedrock Name: Colluvium and trees Unit Weight: 120 pcf \ Cohesion: 300 psf Phi: 42 ° 7.92 -1 _ _ — _ _. _ 1— a - 0 10 20 30 40 50 s0 70 s0 110 100 110 120 Project No GS05365 -145 Distance pig. C•2 000052 809 08 8.08 Units 5 through 8 Existing Timber Walls 791 �- 794 - 7 93 7 92 I__ —I - -- I I - _ -L - _1 . -1. .4 0 iD 20 30 40 50 60 70 80 90 100 110 120 Project No. GS05365 -145 Distance Fig. C -3 000053 8 07 1 Building Load 8 06 Slip Surface Y T Column Load a os. ♦ ♦ Name: Timber wall fill } Unit Weight: 130 pcf 804, Cohesion: 75 psf ► ► Phi: 20 ° 803 o 802 I_ High Ground Water a Name: Timber wall fill ° o Unit Weight: 130 pcf ao1 I— Cohesion: 75 psf Phi: 20 ° c 0 ' m 800 - (D L1J II 7 99 - I 7.98 F— 7.97 Name: Bedrock 796 791 �- 794 - 7 93 7 92 I__ —I - -- I I - _ -L - _1 . -1. .4 0 iD 20 30 40 50 60 70 80 90 100 110 120 Project No. GS05365 -145 Distance Fig. C -3 000053 809 8 ON 8 07 Building Load 806 v 8 05i- + r 8 04 * - 803 4 Slip Surface Units 5 through 8 Slope Column Load Name: Timber wall fill } Unit Weight: 130 pcf Cohesion: 75 psf Phi: 20 ° O 802 High Ground Water 0 0 80 1 X C 0 800 - Y Q) LLl 7 99 7 98 797 7.96 795 794 7.93 Name: Bedrock Name: Timber wall fill Unit Weight: 130 pcf Cohesion: 75 psf Phi: 20 ° 792 4 0 10 20 30 40 50 60 70 80 90 100 110 120 Project No. GS05365 -145 Distance Fig. No. C-4 o0 ®05w 807 Building Load 806 8050- Y 8 04 ' 803 802 0 0 0 X C 0 9 00 f6 _N W 799 7.98 7.97 0 7 Units 9 through 12 Existing Timber Walls Slip Surface Column Load Name: Timber wall fill } Unit Weight: 130 pcf Cohesion: 75 psf ♦ Phi: 20 ° High Ground Water Name: Bedrock 7.96 7.95 794 793 Name: Colluvium and trees Unit Weight: 120 pcf Cohesion: 300 psf Phi: 32 ° 792 _ _I_ ._I _ i__ I I 1 4 0 10 20 30 40 50 60 70 80 90 100 110 120 Project No. GS05365 -145 Distance Fig. No. C -5 UUIJIl�J 809 „ Units 9 through 12 808 Slope 8,07 Building Load 806 v Slip Surface 805, Column Load iq Name: Timber wall fill F 14• } Unit Weight: 130 pcf f 1 Cohesion: 75 psf f Phi: 20 ° 8 ► O 802 ° o _ High Ground Water x 801 C O N 800 N W 7.99 i i 7.98 7971- Name: Bedrock 7 9E 7 95 7 94 793 Name: Colluvium and trees Unit Weight: 120 pcf Cohesion: 300 psf Phi: 32 ° s 7 92 1 0 10 20 30 40 50 60 70 80 90 100 110 120 Project No. GS05365 -145 Distance Fig. No. C$ 00005(1 ATTACHMENT '� �1 i a� �u t.� C O ro P .: CL O L U 1 d .Y U O L O Va r LL 't3 ctj O m Y d. � C L U � � CL O O O c [/ W •S r +D 0 0 z a CL 000,J51 ATTACHMENT i Le Chamonix Condominiums HOA Tree resource evaluation in relation to proposed soil nail and shotcrete slope stabilization project. Prepared for: Thunder Construction PO Box 4841 Aspen CO 81612 Prepared By: Jason Jones Board Certified Master Arborist #RM -0734 Aspen Tree Service Inc. February 28, 2011 Background This report is in regards to the soil nailing and shotcrete project that is under consideration at the Le Chamonix condominiums located on Maroon Creek Road in Aspen. A slope stabilization project has been recommended for this site that will impact trees in native areas that are located in and around where the project will take place. I visited the property last week and it was requested that I provide some information regarding the current condition of the trees and how they might be impacted by the project that is proposed. I have since evaluated the site, the structural reports, and the Yenter Companies method statements outlining the scope of work and have some general information and recommendations as a result. I still am unsure about many of the specific details relating to placement of soil nails, composition of materials to be used and limitations of access but can provide a general overview of the potential concerns. I feel that some additional review and analysis will be required as the plan for the project progresses. Due to the fact that the condominiums are perched on an extreme slope above Maroon Creek, access is very limited and non - conventional methods will need to be employed to stabilize the slope. It has been stated that access will be provided through the implementation of a crane that will lift necessary equipment and personnel over the building to the required areas. It is important to identify what trees can and will remain and which will require removal prior to project commencement. The trees on this site are clearly a valuable resource and it is agreed by all involved parties that they should be preserved and protected during site development whenever possible. It is, however, important to understand that if trees die or fall over in the years following construction as a result of the work, this is not a success. Especially in a situation such as this, where access is very limited and the work site is dangerous, it is very important that project resources are not expended to work around trees that are not likely to survive over the long term. It is important from an efficiency and safety standpoint that trees deemed necessary for removal be extracted before work begins and possibly in conjunction with the mobilization of a large crane that will be necessary for completion of the primary portion of the project. Site Overview The stabilization methods being evaluated will involve the replacement of an existing wooden tiered retaining wall structure with soil nails and a shotcrete wall. The area where this work is to be performed is along a very steep slope on the downhill side of the complex. This extreme grade is covered with a variety of vegetation including numerous trees. These trees are contributing to site aesthetics, shade on the building and are also likely to be helping to stabilize the very steep grade. 000' U59 The trees on the site range from small native multi- stemmed Rocky Mountain maple and serviceberry to single stem aspen trees and large spruce and fir. The larger aspen trees that are in the construction area are in poor condition and no significant efforts should be made to protect them. The multi- stemmed maples and serviceberry will all regenerate quickly if removed and the root balls are left intact. The primary trees of concern are the mature Douglas fir and Colorado spruce that are growing directly below the building. Analysis of construction impacts The methods of construction, installation of soil nails and application of shotcrete, are generally not very damaging to trees as impacts to roots are generally minor even when performed directly in critical root zone areas. These methods are desirable when working around trees as they minimize excavation, the need for fill, and do not require trenching horizontally through roots. I have witnessed some instances where salts from concrete have caused burning injury and this is a potential risk in this case. I can not accurately predict the probability of this type of damage as I am uncertain of the chemical make up of the materials being utilized and the surface area of fibrous roots that will ultimately be impacted by the treatments. It appears from my review of the process at this time, that this contact will be minimal. Although it may be useful to apply a barrier to the areas being treated to minimize root injury, I have been told that this is not possible from an engineering perspective due to the need of the materials to bond with soil particles. Specific considerations The trees on the site are growing in 3 basic zones on the slope, one area is above the existing wall, one area is within the existing wall and one area is below the existing wall. The southwestern side of the complex has a high density of large trees and will present more conflict in all zones. Zone 1, the zone above the wall, consists primarily of Douglas fir and Colorado spruce trees that are growing very close to the building. These trees are generally in good condition with the exception of one tree that is leaning into a deck area. I feel that this tree is a hazard and will need to be removed. The tree is currently leaning very heavily towards the building and showing signs of structural compromise. Any additional disturbances to the root zone area around this tree will increase the probability of a tree failure. The other trees growing between the top of the wall and the building are in overall good condition. These trees could likely tolerate the impacts of the construction if care is taken to minimize site disturbances in root zone areas. The method of construction, placement of long rods that are drilled into the soil should be fairly non - invasive to tree roots as they will penetrate the root zones vertically and not horizontally. The fact that they are angled downward will also limit root contact as the majority of these roots are in the top 24 inches of the soil. The other consideration regarding the trees in this area is access with required equipment to perform the work. The high density of trees along the southwestern corner of the complex will present a problem in this location. I feel that some of these trees will need to be removed to allow access to this G0Ca06u region of the site with the crane and basket that is to be utilized. Some of the trees are also very close and could eventually contact the building which could cause damage in the future. I would prefer to meet on the site with a representative from Yenter Companies, the firm that has provided the plan for the drilling, to determine exactly what trees can be worked around. At this time the area could be evaluated so that the maximum number of highest value trees could be salvaged. Zone 2, the zone within the existing wall includes any area within the existing tiered wall structure and there are 15 significant trees in this region. I feel that it would be very difficult to salvage any of the trees growing here as the application of shotcrete to the face of the grade would be blocked by these trees. It should be noted that, barring the potentially negative impacts of the construction on the tree roots, the trees may pose a problem to the new wall as they will grow and need to be able to move and sway with wind loads. I feel that is may be possible to build around some of these trees, however, it would be necessary to evaluate the feasibility of this with the drilling and shotcrete contractors to be more specific. If it is determined that some of these trees can remain, it will then be important to identify specific placements of soil nails and new wall construction. Only after evaluating each tree and the exact level of disturbance can the ability to withstand potential impacts be evaluated. Zone 3, the area below the wall holds most of the tree resource on the property. There are numerous trees of varying sizes below the work area and I do not feel that many of these trees will be significantly impacted by the construction. There are a few trees along the high- density southwest side of the project that may interfere with crane access and require removal but most trees should remain. Silt fence and erosion control logs that would be installed along the slope to prevent erosion will likely be adequate to alleviate impacts of the work above. There is a thick stand of young spruce and Douglas fir growing here that will help to reforest this slope in the future. It would be advisable, if possible to perform some thinning and possibly some defensible space work in this area, however this scope of work in unrelated to the project as a whole. Conclusions and recommendations My analysis has led me to the following conclusions and recommendations: • It is clear that the most of the spruce and fir trees on the site are currently in good condition and that all efforts should be made to preserve as many of these large trees as possible. • The area that this project is going to be completed in is very difficult to access and the terrain is very steep, some trees may need to be removed as they pose a physical obstruction to the work zone area. • The methods that are proposed to complete the project are generally less invasive to trees than other available methods. • The location of certain trees will make it very difficult if at all possible for them to be preserved through the project. • Certain trees above and below the wall will potentially need to be removed to allow access by a crane suspended man basket and portable drilling equipment. 00OU61 Removal of aspen and multi- stemmed maple/ serviceberry should be done whenever there is a conflict as regeneration of these species will be rapid in disturbed areas. An additional evaluation of each tree in the zones within and above the work area should be completed with input from all involved contractors and an arborist before plans are finalized. Photos of the site Photo showing aspen trees along slope. These trees will regenerate rapidly and should be removed if in the way prior to project commencement. ouoOS2 ��I���; �� • M ,j , )r ;�.;. � i r , a ; i yl r. 1 �:e ATTACHMENT .� Soil Nail and Shotcrete Method Statements for Le Chamonix Timber Crib Wall/ Slope Stabilization Repair Yenter Companies, Inc. 20300 West Highway 72 Arvada, Colorado 80007 000064 SCOPE OF WORK This work consists of installation of permanent soil nails and permanent shotcrete to mitigate the old, failing timber crib wall behind the Le Chamonix Condominiums. Based on the extreme slope angle below the timber crib walls, the shoring installation will take place by drilling, grouting and shotcreting from a platform suspended from a crane (See Exhibit 1). The crane will sit in the parking lot area in front of the Le Chamonix Condominiums (See Exhibit 2) and reach over these residential units to the work area behind and below. If needed, a track mounted drilling rig will be placed on the slopes with minimal disturbance as possible. At the end of the project any disturbed areas will the restored to existing conditions. Safety fencing for OSHA plan compliance will be installed along the steep slopes. On the upslope side of the safety fence, silt fence and erosion control logs will be installed to protect the slopes from erosion and stream bank stability. Tree and building mounted safety cables will run the distance of the down slope side of the project for machine and personnel harness tie offs. This cable system will be installed prior to work commencing for OSHA plan compliance. 000 65 SOIL NAIL AND SHOTCRETE Detailed Construction Sequence Sequence will be similar to the Federal Highway Administration (FHWA) publication number FHWA -SH -93 -068, page 1. Steps may vary depending on timber crib wall conditions and /or the specific geology encountered behind the wall. Step 1. Drill hole for anchor and remove spoils from site (soil nail). Step 2. Prepare anchor attach grout tube and centralizers. Step 3. Place anchor in hole. Step 4. Place grout in hole through tube. Step 5. Place geo- composite drain strips vertically. Step 6. Place welded wire fabric on cut slope. Step 7. Apply first layer of shotcrete. Step 8. Wet set plates and nuts on anchor. Step 9. Apply final layer of shotcrete Proposed Drill Methods and Equipment Drilling will be accomplished using a portable air powered drill(s). Hole diameter will be three inches (3 in.) minimum and drilled at an inclination of 15 degrees (+ or — 5 degrees) down from horizontal unless specified by the Yenter Companies Engineer. rr 'NITER MATERIALS Grout Mix Design Grout is to be Type III Portland Cement mixed with water to a flowable consistency, with water to cement ratio of approximately 0.6. Compressive cube strength will be in excess of 3500 pounds per square inch. Fabric Drain The fabric drains consist of 12 -inch wide JDR Drainage Composites SD -12, or equivalent. Centralizers Centralizers will be non - corrosive PVC 1" class 200 and is purchased from C &M Manufacturing, Santee, California. Rock Dowels The Number 10 threadbar is from Williams Form Engineering. The nut is a Grade 75, number 10, cast hex nut. An equivalent product may be used if necessary. Bearing Plate The plate is an 8" x 8" x 1/2" 0000°01 Reinforcinq Wire Fabric The wire fabric will be a common stock welded wire fabric 4 x 4 —W4 x W4 at Row B and above. 6x6 — W8 x W8 will be utilized from bottom to Row B with a minimum of 6" splicing. Shotcrete MIX PROPORTIONS Per Cubic Yard of Concrete Cement ASTM C -150 664 lbs. Fly Ash ASTM C -618 166 lbs. Sand ASTM C -33 2005 lbs. Size # 8 Aggregate ASTM C -33 800 lbs. AEA ASTM C -260 3.5 oz. Water ASTM C -94 246 lbs. The above weights are based upon aggregates in a saturated, surface dry condition. Batch plant corrections must be made for moisture in aggregates. Slump Obtained (in) f� =5000 p.s.i. Minimum 1 -3" rr CONSTRUCTION REQUIREMENTS Materials Handling and Storage Cement will be stored to prevent moisture degradation and partial hydration. Cement will not be used if caked or lumpy. Aggregates will be stored so that segregation and inclusion of foreign materials is prevented. Steel reinforcement will be stored on supports to minimize contact with the ground. Bundled bars will only be moved with nylon straps and not with a chain or metal chokers to prevent abrasion or cuts. Damage to the anchor steel as a result of abrasion, cuts, nicks, welds, and weld splatter shall be cause for rejection. Bars will be protected from dirt, rust, and other deleterious substances prior to installation. Grout Iniection Method Using an air powered mixer /pump; grout is to be injected at the lowest point of each drill hole through a grout tube (tremie). Each drill hole shall be completely filled with grout in one continuous operation. Cold joints in the grout column are not allowed except at the top of the test bond length of the proof tested production anchors. Grouting before insertion of the anchor is allowed provided the anchor bar is immediately inserted without difficulty. Grouting equipment will produce a uniformly mixed grout, free of lumps and undispersed cement, and be capable of continuously agitating the mix. Mesh and Plate Attachment Mesh will be placed over each section of anchors in "panels ". Each "panel' will be of a size deemed manageable and safe. Each panel will be attached to one another using a pneumatic hog- ringer or rebar tie wire. Edges of each panel are to be overlapped a minimum of 6- inches. Bearing plates and nuts shall be wet set after the first layer of shotcrete has been applied. The mesh and plate and nut will then be covered with the remaining shotcrete layer. Shotcreting Shotcrete will be applied using a REED® trailer mounted 4000 series concrete pump. Concrete Output 50 cy /hr Concrete Pressure 1361 psi Hopper Capacity 14 cu ft Outlet Size 5 in Shotcrete, with minimum thickness of 6 inches, will be applied to the cut slope. nfis(;r "�7^ EXHIBIT 1- Crane Size /Reach a E741366'5J 4k pre Boom M at'N,6- rdm.M wi�ddae Cdalig Jan fNM1 ION (k"gm(2S'e Zf neelght ]Ml .m IM LVt Radm (36P) C.P.ql� r: L568' - 3.6w 6a Zm ks = r,Bao In I La D - of mpocA, Te : E,043 Its f"t El9A1ei L Geafed.eM SO tiR Vial n. ;rr.3,ti*�a�.m.. NO VI ( I ; pj P.rltct: AMPOK WEK Olgw.: U mtm: INxrin'll' win 5"hel � y 4 f"t El9A1ei L Geafed.eM SO tiR Vial n. ;rr.3,ti*�a�.m.. NO VI ( I ; pj P.rltct: AMPOK WEK Olgw.: U mtm: INxrin'll' win 5"hel EXHIBIT 2- Crane Set Locations V 4 I �V o ld no 7,2, ATTAGhMtn i = Chamonix Retaining Wall Repair Construction Management Plan Letter 2/25/11 Thunder Construction is proposing a complete repair of the existing railroad retaining wall structures located on the west side of the Le Chamonix condom complex at 1501 Maroon Creek Road, Aspen, CO 81611. (See attached vicinity map) The existing retaining wall structure has outlived its useful life cycle and needs to be repair as soon as possible so as to maintain stability of the building above Maroon Creek. (See CTL report GS05365145L3 dated October 12` 2009) The construction will commence on May 1 2011 weather providing and is anticipated will be completed by November 24` 2011. A safety fence /erosion control fence will be located approximately at the 8030' elevation contour. This fence will help control any erosion from the site from entering Maroon Creek and also act as a safety fence for any objects dropped during construction. BMP's will be followed throughout the project even though the disturbance area is well under the 1 acre requirement. Due to the location of the property, the only adjacent neighbor is the Highlands Ski Area. The retaining wall structures are only visible from across Maroon Creek and this land is part of the Buttermilk Ski Area and the very south end of the Skyview PUD property. Stage and waste management will be contained onsite. An office trailer and two 30 yard trash cans will be onsite at all time, one at each end of the property. These cans will be covered at night and food items will not be allowed in these cans. A separate bear proof trash receptacle will be provided for food waste. Onsite emissions and noise control will be per the county code requirements. This project will be overlapping the Highland Ski Area construction project across the street, so coordination with that construction team for noise, emission, traffic control, deliveries, etc. will need to be worked out prior to construction start in an onsite meeting setting. A minimum of 250 ton crane will need to be staged in two different locations on the site, see CMP. This relocation of the crane breaks the project into Phase I and Phase II. r,[)ynr77 UQiV and vegetation, drill soil nails, grid and plate, shotcrete system. (Please see Means and Methods Document attached) Repair of the walls will be accomplished by soil nailing through the existing wall structures with screw type nails or solid bar soil nails. A metal grid will be placed over top of the soil nails and a metal plate will bolt the grids to the soil nails. Upon completion of the nails and metal grid a 6" layer of shotcrete will be applied to the entire system, thus providing a concrete /shotcrete wall structure to replace the failing wall structure. Parking for the tenants of the condominium will be provided across the street at the Highlands ski area parking garage. The HOA has already received a letter of agreement for this parking location. Construction parking will be kept to the asphalt parking lot adjacent to the condominiums. Onsite construction storage will be surrounded by a chain link fence perimeter with a green mesh wind block fabric. A majority of the onsite materials will be kept within this fencing. Anything outside of the fencing will be organized neatly and not be able to blow away. A traffic control plan will be submitted with the Earthmoving permit. Minimal lane closures are anticipated and will be kept to a single lane with flaggers to keep traffic and emergency vehicles moving during construction. Construction sequencing for each phase will be: set crane location, prep existing walls Contact List: Le Chamonix HOA c/o Rick Jones 970 - 925 -3994 Thunder Construction c/o Monty Thompson 970 - 379 -5823 Thunder Construction c/o Matt Langhorst 970 - 379 -9847 If you have any questions pertaining to this CMP or any aspect of the project please feel free to call us at the contact numbers above. Thank you, Monty Thompson Thunder Construction Aspen, CO 81611 PtryCjr - 7 7 0 000 to SNOWMASS ASPEN MOUNTAIN ASPEN HIGHLANDS BUTTERMILK ASPENCJSNOWMASS- ASPEN SKIING COMPANY ATTACHMENTOr February 21, 2011 Rick Jones, President, Board of Directors Le Chamonix Association, Inc. 1501 Maroon Creek Road, # 5 Aspen, Colorado 81611 (970) 925 -3994 Re: Parking at Aspen Highlands Dear Rick: This letter is in response to your inquiry as to the availability of parking during the 2011 summer construction months at the base of Aspen Highlands Ski Area. We understand that Le Chamonix anticipates the loss of its parking on its property adjacent to Maroon Creek Road due to a summer -long construction project (perhaps even to include the "shoulder" seasons.) We hereby give Le Chamonix Association, Inc., permission to park up to 25 vehicles (no campers) somewhere in our parking lot, the exact location and details of which we will need to discuss further when the details of our own summer construction staging areas have been defined. In any case, we will make these parking spaces available somewhere at our parking garage to assist you, our neighbors, during your construction project during the dates of April 2e through October 3e, 2011 however we will need the ability to relocate said vehicles within 72 hours if necessary. We will be in contact with you as to the details of such parking as we approach the construction period. FIncerely, Dou Mackenzie 9 Area Mountain Manager Aspen Highlands 970 -544 -3010 P.O. Box 1248 Aspen, CO 81612 -1248 970 - 925 -1220 www.aspeasnowmass.com ® -aR-Y� P� X1,00 077 _E CHAMONIX RETAINING WALL REPAIF CONSTRUCTION MANAGEMENT PLAN SCALE: 1" = 20' ATTACHMENT IF. un >x na Hw A ..m mw sm O 1[ID P & (T s AW a .µxat axa¢a w T cww axcarz a ml ew.ew ./ow .oao Pm xow aiPra.r muw II / / NOTES: 0 / 1.) PROJECT TO BE PHASED. PHASE I NORTH END OF PROJECT COMPLETED, PHASE II WITH CRANE MOVE TO COMPLETE SOUTH END OF PROJECT. 2.) TEMPORARY FENCING TO BE 5' TALL CHAIN LINK FENCE, SILT FENCE AT BOTTOM OF FENCE ON UPHILL SIDE AND EROSION CONTROL LOGS AT BOTTOM OF SILT FENCE. FOR SAFETY CATCH AND EROSION CONTROL. 3.) TRASH FACILITIES TO BE LOCATED TO EITHER END OF PROJECT. 4.) STORAGE AREASAT ASPHALT PARKING TO BE FENCED IN. 5.) DISTURBANCE AREA TO BE KEPT WITHIN SAFETY FENCING EASTTO ROADWAY, 6.) SINGLE LANE CLOSURE FLAGGING PLAN TO BE SUBMITTED WITH C.M. PLAN SUBMITTAL 7.) THREE ONSITE PORT -A -LETS TO BE MAINTAINED THROUGH PROJECT. REVEGETATION AND EROSION CONTROL NOTES 1J SM ON W ro-vpNrttl u soon as pawlbW Mlowlnq amrRnce m avold YMght ears aM woad IMestaeon on the IaMSmp. Ua owrw snail i.oro MR, weed .ntrol In impatted ... 2.) E MA mnbnl ette W to elowrbee areas Nan be Imommenteo to a ,re t ,m b no &o imental i-,a or rvnW m env W R, a arm or wMenas. 3.) Newly weded areas s W l be pr.t d from wind.nd moor erosion Nmugh the use a /Wankets per m -v R"on plans. GRADING AND DRAINAGE NOTES 1.) Sae W.. Wd out W d"p aWtV envtlopes for well repair MM grodln, perm, submittal. 3.) Proposed mil repair Gees riot adversely mans exls W omiw drainage AQVTTY ENVELOPE NOTES ACr1VRY ENVELWE : To IMMe: Cantle UnIW, ONIINes, to wnq, DNvew.y, gaages and Work Areas to, Wall Rcmnabiglpl. PL:bamrer How.x.emwiMga mw i W w Ir awn vlsvwe w rww Ceisy a b eauv a ernaw W Ima -au wt m W v alMl rl- wFwrY..ri klaxmir4 aw w u• me eywry.�d. b menu.A a a. mm uw. ,.maw ae nx a .m mar mo- o- wan ww.w..a.N. a arawwa Ima wa.no xr�. rmm n ®m,, orar.w�...a muy.wn m...�...m m�nnnmw..nq a.iy Nang ONm, / IL CNmo- AaMebm Inc, RWdMt PINaN N.lenaa PrWdylr e/ tlw BmN al prermrs Co twrnnven..i.swsw w n.n miesse wwnr wersaewa wuinFUSmma. MI. aryM_. _..mICNbW Iran4 CMeaamaN a..ylrnaw AanW aavgrlra sew muwty oammlwlpi,.,, a.lr Peraom Accepranre for mem,mnp AphN ammawmu n.n w wn.omm Maary WsawM ..a snaM r v. m,m. a amen, so-o- a ramw, c aaNk, m,w_Ma nm.t ends— .pp_rlrmwn Mlam Ckrk x110 pmdar ® 1.) Approximate Evergreen Tree Lo Wns (Detail T plI j) 2.) Approximate Aspen Tme tptatlons (Detall Twl(a9 VICINITY MAP: 0OOO7Y LE CHAMONIX ACTIVITY ENVELOPE AND SITE PLAN 03 -03 -2011 This site plan shows the activlty envelope location for the retaining wall repair project on the approved Site Plan SCALE: 1 " =30' a • ' ra/ �' �l na g qa . • �• '' II1 � ✓ i �� I PARCEL ID: 2735 142 02 001 -012 PAOPFmvDESawrwN LE aumotmt lDta)oamaNAVs ACC06DP9 TOtNE 19TA1ffiND ®CONOOM.V'OMMAp FORLECNAMONIXAPAR� ACONDOLO!e1RtREC�aIBOD[]2)AT PA¢N. CITY OF ARE,. COIMry lW Pf1Eai, aGIR OP C011&ADO ATTACHMENT ENVELOPE / / / / / LEGEND / FauxroRA3n D WAM VACVR BOX O TBI. 01a!MMAL O$ SAMTARV SEWFA MA ou / I PARCEL ID: 2735 142 02 001 -012 PAOPFmvDESawrwN LE aumotmt lDta)oamaNAVs ACC06DP9 TOtNE 19TA1ffiND ®CONOOM.V'OMMAp FORLECNAMONIXAPAR� ACONDOLO!e1RtREC�aIBOD[]2)AT PA¢N. CITY OF ARE,. COIMry lW Pf1Eai, aGIR OP C011&ADO ATTACHMENT ENVELOPE / / / / / LEGEND FauxroRA3n D WAM VACVR BOX O TBI. 01a!MMAL O$ SAMTARV SEWFA MA ou / BUNMNG IX. 100 FOOT ROADWAY dO Opp / •'• !,iii A /� :% % / rte` -.� _ ��. /• / /i:. _ `� `� �i a / / / / / / / S i / I 000080 1 REVEGETATION NOTES 1. Petl[eml «dvNbY d —p d d,e tldgdundegmmd«itlimmhh <ucmdifrccm " d Cme�cbeaa filtlmpombVty Me 6m tl vmk wd c ov oe .mvge. m�mhtladWl be¢pdmd ! Imm <dWrly um mP<o: m,h oaoa. 3. 2 Yalfy lavimaoEpetlev<n,tl ¢ impovmrmimal4d coda aha ! 9 �A � IfMPae ofehie plvo<mxbe fdleaMduemdm modidms, E ! l.Far�<n n�r"m.b;m�mmmmm�a Allis W bw aered d dep.epmydtlr Cmoxmr 4.4mh< legH we diepoeed ofvby (mm the loh om 6. S-dda dldbhedue W v . mmaummucmp<m S. 9red dull be hydmmdched vnh wood m➢W"r�nvvdrb.vI, 6. To p.<eeme dryiegwemd emdmpdmmgermO.dm .,4c s1 HsseL» HD amim c mrAl blmkm (n vppmmdupu�mhc phnd 7. azm e< ge � '!mdm <mnd blv"k< ®m6cgmm io mla mdphomdVvdvye -- -`� REVEGETATION PLANT LIST C7 COMMONNAMB IO<m of mn l. C Vplm Blwgtl M.dpium) 0.75 C Npim Timolby (PMmm Wevmm Peuue (Pesmn �I'x) 2oo to Toforl h.irg QD«h.mp --qx..) 0.50 =• Pmd<I� &+tl lKoledv <dmmm) 015 r , NoddiegHmme �mmmmmdus) 5.00 p Tad 9.25 NOTE: y S dmr: epcd9eeem pm.ided by Gtl®mm Scd. Lurprrifie! E °°dae�1 N'odoe or LodBRde Pier 6sae. v i gdgOaYlMN�taMbMEpu ..tll�Ilw.Mlm./Mb � ...0•. u l.wL ps�w b m.. r �, bd Im wY .b wrs wau "�Femr. �wrur..bs«FF+..w.. P...�..rre r..��. •_ G.reibvb.FbababMe..mms DIW, O c O FR.a Tx. F� W Fbi.e Pw". ND'bm VM.obn F vbl..n v Cr Nw. W.rM wbs. W W tl� W Pa.Fm bF.wLq. CuY• Pw.b kv8...c WhFOM'11V+.441) a� 6ab iPk.F 1V d...F a., e,.b ,lMrySIF,1'll"rq.Ytll. SM1IId M•11M1f.Fb11 Rbr.. a.a. wb.mnv mrev OimieY Mm"HS IaM1pi Y•IIVZY.bq 4V. 6nb igb1RIN Ezwblp— Ennn 6aMS nw�dvwon C O A ATTACHMENT! � m m� a 10' 20' r O North Scale I"= 20'-0" J ATTACHMENT �� Chamonix Retaining Wall Repair Water Mitigation Letter - 2/25/11 Thunder Construction is proposing a complete repair of the existing railroad retaining wall structures located on the west side of the Le Chamonix condom complex at 1501 Maroon Creek Road, Aspen, CO 81611. (See attached vicinity map) The existing retaining wall structure has outlived its useful life cycle and needs to be repair as soon as possible so as to maintain safety and stability of the building above Maroon Creek. The construction process will involve a small amount of water mitigation to help relieve the existing and proposed wall structures from undue water pressures and erosion. The existing 12 units have flat roofs with internal drains that daylight directly to the slope above Maroon Creek. The roof water and dripping overflow water from the eaves in the wintertime have added to the structural decay of the existing railroad tie walls and erosion alongside of the buildings foundation. Thunder is proposing to gather the day lighted outlets /new roof gutter downspouts and combine them into a drip irrigation system across the length of the building. This drip irrigation system will help supply needed water to the existing trees and vegetation. It will also provide water to new vegetation that will be installed per the supplied Revegetation Plan for the site. The manifold system will help alleviate the 12 point source discharges and will be sized to accommodate the water load of a 10 year storm even. Overflows to the system will need to be installed for any rain events above and beyond the 10 year storm event to keep the system intact. Erosion control measures can be installed at the point source locations upon approval through the county. Final water mitigation plans will be submitted to the county at time of Earthmoving permit submittal. If you have any questions pertaining to this CMP or any aspect of the project please feel free to call us at the contact numbers above. Thank you, Monty Thompson Thunder Construction Aspen, CO 81611 O0003i 'TACHMENI � PITIQN COUNTY PRE- APPLICATION CONFERENCE SUMMARY LOCATION: 1501 Maroon Creek Road PID #: 273514202001 -012 ZONING: AR -10 SIZE: 7.18 acres OWNER: Le Chaminox owners (12 units) REPRESENTATIVE: Glenn Horn PHONE and EMAIL: 925 -6587; hg orn(crof.net DATE: February 1, 2011 PLANNER: Mike Kraemer, 920.5482 Type of Application: Activity Envelope, Site Plan, and Special Review for Bank Restoration Description of Project/Development: The Applicant is requesting approval of an Activity Envelope and Site Plan to repair the steep bank leading down to Maroon Creek in effort to replace a failing railroad tie retaining wall that provides support to the Le Chamonix complex. The existing and future retaining walls lie within the 100' stream setback of Maroon Creek. Because of the setback and the need to retain the bank of the Creek, the Applicant will be required to respond to Code standards for river restoration work. Land Use Code Sections to be addressed in letter of request (application): Sec. 7- 10 -50: Activity Envelope /Site Plan; Sec. 7- 20 -10: Site Preparation and Grading; Sec. 7- 20- 20(c)(2): Steep and Potentially Unstable Slopes; Sec. 7- 20 -30: Water Courses and Drainage; Sec. 7- 2040(c): Floodpiain Sec. 7- 20 -50: Geologic Hazards Sec, 7- 20- 80(d): River and Stream Corridors and Wetlands — Mitigation Standards Sec. 7 -20 -130: Landscaping and Vegetation Protection Sec. 9- 50 -20: Restoration without Significant Changes Staff will refer the application to the following agencies: Planning Engineer, Maroon/Castle Creek Caucus, and CDOW. Review by: BOCC (one- step review). Public Hearing: Yes. The Applicant shall post a public notice sign on the property at least 15 days prior to the date specified for the Public Hearing pursuant to Sec. 2- 20- 100(a)(3) of the Land Use Code. In addition, the Applicant shall mail notice to all property owners and mineral estate owners within 300' of the subject property with the return address of the Community Development Department (form of notice to be obtained from the Community Development Department). The names and addresses shall be those on the current tax records of Pitkin County, as they appear no more than 60 days prior to the date of the public hearing. A property owner receiving the public notice shall have 2 weeks from the date the notice was postmarked to submit comments or objections to the Community Development Department. FEES: $5,446 (make check payable to " Pitkin County Treasurer ") Planning Office flat fee: $3,744 (non - refundable; based on 12 hours of staff time. If staff review time exceeds 14.4 hours, the Applicant will be charged for additional time above 12 hours at a rate of $312/hour) • Web Technology Fee: $25 • Public Notice: $54 o Planning Engineer Minor Review: $1,248 o BOCC Clerk Fee: $375 To apply, submit 8 copies (2 unbound) of the following information, unless noted otherwise: 000082 I. Summary letter explaining the request, providing background on prior approvals and permits, and addressing compliance with the Code sections listed above 2. 24" by 36" and 11 "17" Activity Envelope and Site Plan as designated in Section 2. 1.1 and 2.1.12 of the Pitkin County Land Use Application Manual; 3, Previous Land Use Approvals (if applicable); 4. Proof of attainment of appropriate Army Corps of Engineers permits, if applicable. 5. Proof of ownership of subject property; 6. Parcel description, including legal description and vicinity map; 7. Total fee for review of the application; 8. Signed fee agreement (1 copy); 9. Consent from all owners to process the application and authorizing the representative (1 copy) 10. List of all property owners and mineral estate owners within 300' of the subject property (1 copy) 11. Copies of this pre -app form NOTES ➢ PLEASE SUBMIT TWO UNBOUND AND ONE -SIDED COPYOF YOUR COMPLETE APPLICATION. PLEASE SUBMIT TWO -SIDED COPIES OFALL REMAINING COPIES OF YOUR APPLICATION (IFPOSSIBLE). THE PARCEL IDs SHOULD BE INCLUDED ONALL DOCUMENTS INCLUDED IN YOUR APPLICATION ➢ ALL MAPS SHALL BE FOLDED. ➢ This pre - application conference summary is advisory in nature and not binding on the County. The information provided to this summary is based on current zoning standards and staffs interpretations based upon representations of the applicant. Additional information maybe required upon a complete review of the application. The Pitkin County Land Use Code and Application Manual is available on -line at hum1, www. aspe1Urakin .cowdents,7 u'J100a3 'TACHMENT 0 PITKIN COUNTY PRE- APPLICATION CONFERENCE SUMMARY LOCATION: 1501 Maroon Creek Road ZONING: AR -10 PID #:273514202001 -012 SIZE: 7.18 acres OWNER: Le Chaminox owners (12 units) REPRESENTATIVE: Glenn Horn PHONE and EMAIL: 925 -6587; ghorq(d� rof.net DATE: February 1, 2011 PLANNER: Mike Kraemer, 920.5482 Type of Application: Activity Envelope, Site Plan, and Special Review for Bank Restoration Description of Project/Development: The Applicant is requesting approval of an Activity Envelope and Site Plan to repair the steep bank leading down to Maroon Creek in effort to replace a failing railroad tie retaining wall that provides support to the Le Chamonix complex. The existing and future retaining walls lie within the 100' stream setback of Maroon Creek. Because of the setback and the need to retain the bank of the Creek, the Applicant will be required to respond to Code standards for river restoration work. Land Use Code Sections to be addressed in letter of request (application): Sec. 7- 10 -50: Activity Envelope /Site Plan; Sec. 7- 20 -10: Site Preparation and Grading; Sec. 7- 20- 20(c)(2): Steep and Potentially Unstable Slopes; Sec. 7- 20 -30: Water Courses and Drainage; Sec. 7- 20- 40(c): Floodplain Sec. 7- 20 -50: Geologic Hazards Sec. 7- 20- 80(d): River and Stream Corridors and Wetlands — Mitigation Standards Sec. 7 -20 -130: Landscaping and Vegetation Protection Sec. 9- 50 -20: Restoration without Significant Changes Staff will refer the application to the following agencies: Planning Engineer, Maroon/Castle Creek Caucus, and CDOW. Review by: BOCC (one- step review). Public Hearing: Yes. The Applicant shall post a public notice sign on the property at least 15 days prior to the date specified for the Public Hearing pursuant to Sec. 2- 20- 100(a)(3) of the Land Use Code. In addition, the Applicant shall mail notice to all property owners and mineral estate owners within 300' of the subject property with the return address of the Community Development Department (form of notice to be obtained from the Community Development Department). The names and addresses shall be those on the current tax records of Pitkin County, as they appear no more than 60 days prior to the date of the public hearing. A property owner receiving the public notice shall have 2 weeks from the date the notice was postmarked to submit comments or objections to the Community Development Department. FEES: $5,446 (make check payable to " Pitkin County Treasurer ") Planning Office flat fee: $3,744 (non - refundable; based on 12 hours of staff time. If staff review time exceeds 14.4 hours, the Applicant will be charged for additional time above 12 hours at a rate of $312/hour) o Web Technology Fee: $25 o Public Notice: $54 Planning Engineer Minor Review: $1,248 BOCC Clerk Fee: $375 To apply, submit 8 copies (2 unbound) of the following information, unless noted otherwise: 000084 1 he / / / i _5 / n� ATTACHMENT- . SLOPE ANALYSIS m LE CHAMONIX CONDOMINIUM �N CITY OF ASPEN COUNTY OF PITKIN, STATE OF COLORADO s / l I N LEGEND IEGEND }F RK Hr T Al / / o�mca Sj WAIEX VKK B6\ d5 xnml vKVZ •ox b F• O RF➢NCNE sEp6fK C � <• ® 94AiMY 4.YEx YAXH01£ ® YMLMV YRER YINNpf o ury wRSrK 0 bw Pf[6fK o • o ans yEIER cwaxlE wvram mux•I / ' � / ® / arwar • IE , azyw pm / y _ . - Raoo 9r.al, waRW G �(� i � , ' caxamE 9r•aEr roues T'ta mml m .;. - - - - -- m om - • .- OVIE T.W. WAtlM LW / ---- / -- - - - -- --- -�,, �'� / tM n Wl 9RP01ff 4RUYY F / 8f[7•[..,u� 8f")♦ RIFPXWE WE * GRAPHIC SC / mm 19m / EImBC mn: % / N 0R - 16i 919E ©['�it�® ©�EL118fE1� / ffi - WR 9AiE / o ®mgr i'1p #2 ell / /� /� / �a __ww �; /, /� / /� /��ii x//11 ae ../ u°0•m"0.�g D®.' 86>i861 © m 1 he / / / i _5 / n� ATTACHMENT- . SLOPE ANALYSIS m LE CHAMONIX CONDOMINIUM �N CITY OF ASPEN COUNTY OF PITKIN, STATE OF COLORADO s / l / 4.� I N / D IEGEND i / ' Al Ru xroRAVr o�mca p,� y / / d5 xnml vKVZ •ox b F• � / / C 16EPMIME Pw6EK <• % I ® YMLMV YRER YINNpf / I 0 bw Pf[6fK o ' / Em's ® j ' / MS 161Nt � / o caxamE 9r•aEr roues T'ta mml m mEFra m om - • - �x� mm �'� / n Wl 9RP01ff 4RUYY F / 8f[7•[..,u� 8f")♦ RIFPXWE WE o�m mm 19m / EImBC mn: % / N 0R - 16i 919E ©['�it�® ©�EL118fE1� / ffi - WR 9AiE o ®mgr / 4.� NOTES I. 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BAWS OF BF.VN16 ipl Ma 9PfKY 6 n BLIANG OF 9pby'W BEI'AEEII nE M6f avnmm carom tt 9SIIM Ia A za• ey eR.A95 w u10 txE 9Ln1 Ina axam a SCTCW tA. n ]25 Poal lam xLYMIY GP W MfF AL 910tH xp£al. z onrz a wR.r 9rrEycm q zao 1 UISAR YXfR Y9➢ i0 PFAfaa TRS IIP' aRMHR 4MYM MFpF US 9M`hY iEET. +_ 9tvnnars m1oRY xv¢a A¢ e.xan ox xxnauE GEOC(TL wlnvy oAnY a' laze (roes e ®� nPI sl yMIt i a �A9 s CI➢aLSpNUxAYWO A EuvAnax: eme oz ws 91ow 1RREOx. z W <' I z� uo 'ZL Z 0 U L 2 Z ? Z D f9 QN $ a U O xa z' O� QI8 N O d S u U J PROJECT NO. 20]1]80.01 1 147V_4e t; /J i ! f March 9, 2011 Mr. Richard Jones Le Chamonix Association, Inc. 323 West Main Street, Suite 301 Aspen, Colorado 81611 Our Ref.: 113 -81624 RE: GEOLOGICAL HAZARD EVALUATION, LE CHAMONIX CONDOMINIUMS, MAROON CREEK ROAD, PITKIN COUNTY, COLORADO Dear Mr. Jones: In accordance with Golder Associates Inc.'s (Golder's) March 2, 2010 scope of work, we have prepared this letter to present the findings of a geological hazards evaluation conducted for the subject property. This evaluation is intended to provide an assessment of the geological hazards which may affect development of the property. This evaluation consisted of field reconnaissance and review of existing literature. Our investigation was conducted in accordance with Section 7 -20 -20 Steep and Potentially Unstable Slopes and Section 7 -20 -50 Geologic Hazards, Sections (a) through (i) of the Pitkin County Development Standards. This evaluation does not include an environmental assessment. The following documents were provided by you to assist in our hazard evaluation: • Le Chamonix Condominiums Retaining Wall- Structural Report; KL&A, Inc.; without date. • Timber Wall and Slope Evaluation Le Chamonix Condominium; CTL Thompson; 1 20CT09 ■ Geotechnical Report Le Chamonix Condominiums; CTL Thompson; 21 DEC10 ■ Slope Analysis, Le Chamonix Condominium; High Country Engineering, Inc.; 15FEB11. We did not review the efficacy, validity or adequacy of the content or recommendations contained in the reports or of the planned repair work. INVESTIGATION AND LITERATURE REVIEW Our investigation consisted of a site visit and review of three map sets, the "Pitkin County, Colorado Lower Roaring Fork Valley, Potential Geologic Hazards" by Colorado State University, 1974; "Map showing areas of selected potential geologic hazards in the Aspen quadrangle, Pitkin County, Colorado" prepared by Bruce Bryant, U.S. Geological Survey, and "Roaring Fork and Crystal Valleys -an Environmental and Engineering Geology Study' by the Colorado Geological Survey. We conducted a site visit to the property on February 24, 2011. The site was snow covered at the time of our visit. '\ 111a162410106t113816241camaroonueebtlgeohazeval Ia- fn109mer11 Gocx Golder Associates Inc. 44 Union a Suite O Lakewood, d, CO 80 80228 USA Tel: (303) 980 -0540 Fax: (3030 3) 9852080 www.gotdar.com r- Golder Associates: Operations in Africa, Asia, Australasia, Europe, North America and South America OU O 0 R 6 Golder, Golder Associates and the GA globe design are trademarks of Golder Associates corporation Mr. Richard Jones March 9, 2011 Le Chamonix Association, Inc. 2 113 -81624 SITE CONDITIONS The site is located on the east side of the valley between Maroon Creek Road and Maroon Creek. The building was constructed in 1965 and is sited between the road and the creek bank. The creek bank is comprised of very steep slopes. The timber walls were also presumably constructed near that time and have served to support the building and decks as well as limiting erosion of the steep slope We understand that the proposed work includes installation of additional slope retention to address deficiencies in the existing timber retaining walls The valley deposits include colluvial, alluvial and glacial overburden soils. Based on the CTL Thompson investigation of the site, we understand that the slope consists of colluvial soils, fill and bedrock of the Chinle Formation. The site investigation revealed subsurface conditions including cobbles and boulders in a sandy matrix overlying siltstone and limestone bedrock. Based on the investigation, bedrock exists at a depth of 20 to 35 feet below the buildings. An outcropping of the bedrock exists roughly halfway down the slope between the buildings and the creek. Slope angles in the exposed bedrock and soil vary between 34 and 66 degrees. The slope is intermittently vegetated with large Aspen and conifer trees as well as grasses and shrub undergrowth. Parts of the slope are not vegetated and subject to erosion. RESULTS Section 7 -20 -20 Unstable Slope Hazards The steep slopes between the building and the creek appear to be stable in their current configuration. Except where the retaining wall have been constructed, these slopes are natural, moderately vegetated and do not show signs of instability We understand that the proposed method of construction will not affect the slopes below the existing walls. Any grading or construction on the very steep slopes including the existing timber wall may affect the stability of the slopes and should be designed by a registered professional engineer. Cuts in this area will require engineered retention. We understand that these potential impacts have been addressed by the geotechnical report and construction documents for the site. Section 7 -20 -50 (a) Avalanche Areas The creek bank behind the building is subject to natural and man -made avalanche hazards. Development is not planned on these slopes. Section 7 -20 -50 (b), (c), (d), (e), (f), (g), (h), (i) None of the areas in this parcel are impacted by Section 7 -20 -50 (b) Landslide Hazards, (c) Rockfall Hazards; (d) Alluvial Fan Hazard; (e) Talus Slopes; (f) Mancos Shale; (g) Faults; (h) Expansive Soil and Rock; or (i) Ground Subsidence. SUMMARY OF RESULTS Potentially unstable slopes due to the proposed construction can be mitigated by constructing engineered retention in accordance with recommendations in the geotechnical report for the site and established engineering practices for this area. Construction is not proposed within the area affected by avalanche hazards. The proposed improvements are not affected by other potential geological hazards as listed in the Code. LIMITATIONS This report has been prepared in accordance with generally accepted geological practices in this area for use by the client for preliminary planning purposes. The preliminary conclusions and recommendations submitted in this report are based upon data obtained from the observations made in the field and from V \ 624\ 0100\ 113816241ca- marooncreekrcigooha eval It-Ml 09maril do" i Golder Associates Mr. Richard Jones March 9, 2011 Le Chamonix Association, Inc. 3 113 -81624 information provided by you. It should be noted that geological hazard events are sporadic and unpredictable. The findings and recommendations given in this report are site - specific, and are only valid for the subject site. Respectfully submitted, GOLDER ASSOCIATES INC. Roger Pihl P.G. Senior Geologist RP /kag \11\ 81624\ 0100\ 113616241c - marooncmekMgeohazeval lV- M199marii dou - OUOU V -, ( Golder Associates ATTACHMENT 40 PITKIN COUNTY COMMUNITY DEVELOPMENT DEPARTMENT AGREEMENT FOR PAYMENT OF LAND USE APPLICATION FEES PITKIN COUNTY (hereinafter "COUNTY ") and (It (hereinafter "APPLICANT") AGREE AS FOLLOWS: F3 APPLICANT has submitted to COUNTY an application for J7�+ r r , ry (hereinafter, the "PROJECT "). 2. APPLICANT understands and agrees that Pitkin County Ordinance No. 30 -2009 establishes a fee structure for land use applications and the payment of all processing fees is a condition precedent to a determination of application completeness. The fee structure is based on the COUNTY'S policy that development shall pay, in full, the cost of development review in the COUNTY. Fees have been set to be consistent and fair to the public and to reflect the expense incurred in providing such services to the public. 3. APPLICANT and COUNTY agree that because of the size, nature or scope of the proposed PROJECT, it may not be possible at the time of application to ascertain the full extent of the costs involved in processing the application. 4. APPLICANT and COUNTY agree that fees charged for the processing of land use applications shall accumulate if an application includes more than one type of land use review. 5. COUNTY and APPLICANT further agree that it is impracticable for COUNTY staff to complete processing or present sufficient information to the Planning Commission and /or Board of County Commissioners to enable the Planning Commission and/or Board of County Commissioners to make legally required findings for project approval, unless current billings are paid in full prior to decision. 6. Therefore, APPLICANT agrees that in consideration of the COUNTY'S waiver of its right to collect full fees prior to a dete :nation of application completeness, APPLICANT shall pay a base fee in the amount of $ ✓� G•ao which is based on "hours of staff time, and if actual time spent by staff to process the application exceeds the average number of hours by more than 20 %, then the COUNTY will bill the APPLICANT quarterly for the additional time spent. Such periodic payments shall be made within 30 days of the billing date. APPLICANT further agrees that failure to pay such accrued costs shall be grounds for suspension of processing. PITKIN COUNTY Cindy Houben Community Development Director LE—! v"olj ix fCSSdc (� -i 7�, roc. ( "APPLICANT ") y : 5>� IC I �9 J1'TarLS Print Name and Title (if applicable) Address: 0000 °9 1TTACHMENT n LE CHAMONIX ASSOCIATION, INC. c/o Rick Jones 323 West Main Street, Suite 301 Aspen, Colorado 81611 (970) 925 -3994 February 24, 2011 Mr. Mike Kraemer Pitkin County Community Development Department 130 South Galena Street Aspen, Colorado 81611 Dear Mike: This letter authorizes Glenn Horn of Davis Hom Incorporated to prepare and submit a land use application for Le Chamonix Association, Inc., and represent this Association in the Pitkin County land use review process. You may contact me at 925 -3994 if you have any questions. Thanks! Sincerely, LE CHAMONIX ASSOCIATION, INC. By: Rick Jones, Presi a and of Directors 000090 LE CHAMONIX ASSOCIATION, INC. c/o Rick Jones 323 West Main Street, Suite 301 Aspen, Colorado 81611 (970) 925 -3994 February 24, 2011 Pitkin County Community Development Department 130 South Galena Street Aspen, Colorado 81611 To whom it may concern: M,4cV MENT Please find attached hereto the current list of condominium owners of Le Chamonix Association, Inc., located at 1501 Maroon Creek Road, Aspen, Colorado 81611, as downloaded today from the Pitkin County Assessors website. It is my understanding, however, that Units 4 and 11 are under contract to be sold, and thus ownership thereof may change soon. You may contact me at 925 -3994 if you have any questions. Thanks! Sincerely, Attachment LE CHAMONIX ASSOCIATION, INC. By: Rick Jones, Pret; Board of Directors 000091 Parcel Multiple Search Results Page l of ? Pitkin bounty Assessor /Treasurer Search Results AsseS>Y1j'fY taSUrer Prog S I Assessor Subset Query I Assessor Salcs Sew Clerk & Recorder RecMdon Search Legal Description: Subdivision Search The following parcels were selected. The records are sorted by ParceiNumber. To display detail information for a selected parcel, click on the respective Account Number. Account Number CParcel Number Owner Name �- Physical Address Legal Description 8005583 2 73 5 1420200 1 SCHILLE JOHN JR & JIB DONG 1501 MAROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 9 2005587 ] 273514202002 JONES RICIIARD MC CULLOCH JR 1501 MAROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 5 2005590 =1 273514202003 11 ERCK STANLEY C 50% 1 MAROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 2 8005603 273514202004 GASIOROWICZ HILDE E TRUST 1501 MAROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 6 2005603 11 273514202005 SCHUCI'Z LYNDA W & DAN C 150 M AROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 11 2005605 273514202006 ROOKASIN IRIS 1 501 M AROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 10 8005596 273514202007 EAGLE MELVIN & LEATRICE 1501 MAROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 8 2005606 273514202008 RYMER PATRICIA A TRUST 1501 M AROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 4 8005609 273514202009 RUFUS CAIvII CAMI LLC ! 1501 MAROON CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 3 11005612 2735142 12010 SOUTH POINT CONDO LLC AROON' CREEK RD ASPEN Subdivision: LE CHAMONIX Unit: 7 t0 1 05627 � 273514202011 RECKLING THOMAS R & MARGARET W AROON CREEK RD ASPEN F S ubdivi s i on: LE C HAMONIX Unit: 1 1005630 2 ^3514202012 SEI DEMAN R OB & KELLY I ALL , 6 t1 - k; hZplhvw• w. pitkinassessor. or VVamssor PamelMu ltipleResults.asp 2;24,'2011 Parcel Multiple Search Results Page 2 of 2 1501 MAROON CREEK RD .ASPEN Subdivision: LE CHAMONIX Unit: 12 ASSOC II 1501 MAROON CREEK RD ASPEN II COMMON AREA iAMONIX DESC: iI 13 Record(s) Displayed. ron of Pa Assessor Database Search Onlion I Treasurer Database Search Options Pitkin County Home Page: The Pitkin County Assessor and Treasurers Offices make every effort to collect and maintain accurate data. However, Good Turns Software and the Pitkin County Assessor and Treasurer's Offices are unable to warrant any of the intormalion herein contained. Copyright 0 2008 Good Turns Software. All Rights Reserved. Database ttc Web Design by Goal Turns Software 000093 htip://www.pitkinamsor-orglassenor/PamIMultil)IORe$Wu.asP 2/2412011 4 City of Aspen & Pitkin County GIS 130 S Galena St Aspen, CO 81811 Phone: 970- 920.5453 Fax: 970 -544 -5378 THANK YOU FOR YOUR BUSINESSI INVOICE DATE: 3/4/11 INVOICE # 201880 31LL TO: Glenn Hom Davis Hom 215 S Monarch Ste 104 Aspen, CO 81811 970- 925-8587 11 'Jake all checks payable to City of Aspen and reference GIS & the invoice number In the note. If you have any questions concerning this Invoice, contact 13ridgene Kelly at 970 -920 -5453, bndgetQci.aspen.co.us. I Easy Peel's Labels i ♦ Bend along line to t o AVERYO 5160 Use Avery Template 51600 i Feed Paper expose Pop-Up Edge'" 54 EXHIBITION LANE LLC 1185 PARK AVE #11K NEW YORK, NY 10128 ANDERSON JON & LORI 43 EXHIBITION LN ASPEN, CO 81611 ASPEN HIGHLANDS COMMERCIAL METRO DIST 715 W MAIN ST #304 ASPEN, CO 81611 ASPEN HIGHLANDS CONDO ASSOC INC ASPEN HIGHLANDS VILLAGE AFF 0075 PROSPECTOR RD HOUSING ASPEN, CO 81611 52 ABACUS BOOKKEEPING 52 BAYVIEW TER MILL VALLEY, CA 94941 -2495 ASPEN SKIING COMPANY LLC PO BOX 1248 ASPEN. CO 81612 BERGDAHL MATTHEW A & ELIZABETH A 0011 EXHIBITION LN ASPEN, CO 81611 BURROWS HUGH & SARA 0115 BOOMERANG RD #5106 ASPEN, CO 81611 EASTWOOD HIGHLANDS INVESTORS 85.72% 0115 BOOMERANG RD #5201 ASPEN, CO 81611 FORAN EDMUND C & BARBARA 45 EXHIBITION LN ASPEN, CO 81611 BUYSSE MICHAEL 0115 BOOMERANG RD #5107 ASPEN, CO 81611 FAGAN CHARLES D PO BOX 1107 ASPEN, CO 81612 LISMAN ADRIANA 0115 BOOMERANG RD - #5308 ASPEN, CO 81611 ASPEN HIGHLANDS VILLAGE PARK & LOAD C/O BEACH RESOURCE MANAGER 133 PROSPECTOR RD # 4210 ASPEN, CO 81611 BUILDING 7 LLC C/O ASPEN SKIING COMPANY PO BOX 1248 ASPEN, CO 81612 DOMOSZLAY KATALIN 0115 BOOMERANG RD #5410 ASPEN, CO 81611 FEHER LAWRENCE D 0115 BOOMERANG RD #5404 ASPEN, CO 81611 LOT 4 PYRAMID POINT ESTATES LLC C/O RICHARD A WAX ASSOC LLC PO BOX 7699 ASPEN, CO 81612 LYONS DAVID C MAROON NEIGHBORHOOD TOWNHOME MBEREKO ISAAC TP & LAUREN P 0155 BOOMERANG RD #5409 ASSOC PO BOX 10296 ASPEN, CO 81611 402 WIDGET ST ASPEN, CO 81612 BASALT, CO 81621 MEYERSTEIN TRUST 0115 BOOMERANG RD #5103 ASPEN, CO 81611 NERAL CHRISTOPHER J 0115 BOOMERANG RD #5405 ASPEN, CO 81611 OCONNELL DANIEL S & GLORIA P 16 ROCK RIDGE AVE GREENWICH, CT 06831 PELLEGRINI VINCENT D REV TRUST 601 LAKELAND RD SOUTH SEVERNA PARK, MD 21146 PISANI MARK & JILL 31 EXHIBITION LN ASPEN, CO 81611 � v Etiquettes faciles a peler PERGANDE DON W & ROSALYN 0115 BOOMERANG RD #5102 ASPEN, CO 81611 PITKIN COUNTY 530 E MAIN ST #302 ASPEN, CO 81611 A Repliez a la hachure afin de I Sens de le roly M Pn.j Wm t PI CASTLE ROCK LLC 14.28% 3033 E 1 ST AVE #502 DENVER, CO 80206 PURCELL ERICA 0115 BOOMERANG RD #5403 ASPEN, CO 81611 www.avery.com 1- 800-GO -AVERY Easy Peel® Labels Use Avery® Template 5160 REITHER LINDSAY A 115 BOOMERANG RD #5406 ASPEN, CO 81611 TAYLOR JOSEPH W & NORA S 0115 BOOMERANG RD #5108 ASPEN. CO 81611 TWOHIG PAUL & CAROL ANN PO BOX 2830 ASPEN, CO 81612 000096 Eticluettes faciles ti peter .—...----- ----- .. a..covQD c4cne ♦ Rend along line to Feed Papa expose Pop-Up Edge TM ' SHANKS ROBERT H 0115 BOOMERANG RD #5304 ASPEN, CO 81611 THOMPSON JESSE 0115 BOOMERANG RD #5408 ASPEN, CO 81611 UMBARGER MARK R 0115 BOOMERANG RD #5407 ASPEN, CO 81611 Sens de Replier A la hachure afin de rdvdlar le mbord Poo -UoTM 1 a AVERY® slew® i STEWART MILTON M JR & CAROLE C 0115 BOOMERANG RD #5103 ASPEN, CO 81611 TIERNEY MICHAEL P & ANNE PO BOX 2391 ASPEN, CO 81612 WITT PATRICIA 0115 BOOMERANG #5109 ASPEN, CO 81611 www.avery.com 1. 800 -60- AVERY •' PUBLIC NOTICE RE: Le Chamonix Activity Envelope, Site Plan and Special Review for Bank Restoration (CASE# P019 -11; PID 2735 - 142 -02 -001 THRU 0012) NOTICE IS HEREBY GIVEN that a public hearing will be held on Wednesday, May 11, 2011 at a regular meeting to begin at 12:00 PM or as soon thereafter as the conduct of business allows, before the Board of County Commissioners, Plaza One Conference Room, 530 East Main Street, Aspen to consider an application submitted by the Le Chamonix owners (215 South Monarch Street, Suite #104, Aspen, CO 81611) requesting approval of an Activity Envelope and Site Plan to repair the steep bank leading down to Maroon Creek in effort to replace a failing railroad tie retaining wall that provides support to the Le Chamonix complex. The properties are located at 1501 Maroon Creek Road, and are legally described as Units I thru 12, Le Chamonix Subdivision. The State Parcel Identifications for these properties are 2735 - 142 -02 -001 thru 0012. The application/resolution are available for public inspection in the Community Development Department, City Hall, 130 S. Galena St., Aspen CO 81611. For further information, contact Mike Kraemer at (970) 920 -5482. Jeanette Jones, Deputy County Clerk Board of County Commissioners Published in the Aspen Times Weekly on April 10, 2010. Attention Applicant/Representative: It is your responsibility to do the following: 1. Mail this Public Notice to all property owners and mineral estate owners within 300' of the subject property at least 30 days prior to the hearing with the return address of the Community Development Department. The names and addresses shall be those on the current tax records of Pitkin County as they appeared no more than 60 days prior to the date of the public hearing 2. Submit the Affidavit of Notice by Posting & Mailing (previously sent to you with your applicant letter) as proof of compliance with the Code at the hearing. 3. Pick up Public Notice sign from the Pitkin County Community Development Department, 130 South Galena Street, Aspen, CO (970) 920 -5526 4. Post the Public Notice sign on the property at least fifteen days (15) prior to the hearing 5. Remove the Public Notice sign within one week after hearing date County of Pitkin } AFFIDAVIT OR NOTICE & } Ss. MAILING PURSUANT TO State of Colorado } PITKIN COUNTY LAND USE �( CODE SECTION 2 -20 -100 being or representing an Applicant to the Pitkin County Development Permit, personally certify that 1 have complied with the public notice requirements pursuant to Section 2 -20 -100 of the Pitkin County Land Use Regulations in the following manner: By mailing of notice, a copy of which is attached hereto, by first- class, postage prepaid U.S. Mail at least 30 days prior to the public hearing to all owners of property adjacent to the subject property, as indicated on the attached list, on the_? day of k r. , 2041 (which is prior to the public hearing date of91 R III . The names and addresses of the adjacent property owners shall be those on the current tax records of Pitkin County as they appeared no more than 60 days prior to the public hearing. 2. By mailin c least 30 y prop , as notice, a prior to a public ndica d on the att, be4Kng date of / ichySattached hereitp6y first- class, po ge prepaid U.S ail at ng to the own ) of the mine state undernea a subject ed list, on the _day of 200_ (which ' _ days prior �. The es and a es of the miners state owners shall of Pitki County as th appeared no mo han 60 days prior to to a public those on t the public he 3. By posting a sign in a conspicuou plac on the s b* t property (as it could be seen from the nearest public way) on the day of J 20, which is at least fifteen (15) days prior to the public hearing. A photograph of th posted sign is a her to. L-r Gl %A ok � hLl Applicant's name S' ature (Attach photograph here) Signed before me this !o day of M* 20N_by Catalina Cruz WITNESS MY HAND AND OFFICIAL SEAL Notary Public Colorado My comm i ssion expires: _ f? -2 1 — CN k G JA C R.U, 2- Notary Pub Notary Public's Signature G Acoonly \adm m \fovns\af fidavi 1 I a-f 4 City of Aspen & Pitkin County GIS 130 S Galena St Aspen, CO 81611 Phone: 970- 920 -5453 Fax 970- 544 -5378 INVOICE DATE: 3/4/11 INVOICE # 201660 BILL TO: Glenn Horn Davis Horn 215 S Monarch Ste 104 Aspen, CO 81611 970 - 925-6587 pW r +' Mailing Labels 300h Le Chamonix 1 $74.98 Make all checks payable to City of Aspen and reference GIS & the invoice number in the note If you have any questions concerning this invoice, contact Bddgette Kelly at 970 -920 -5453, bddgett@ci.aspen.co.us THANK YOU FOR YOUR BUSINESS! Sales Tax- 9.0% Total Z Usti Avery T"Plate $160® l Fad Pow = expose ►�p edge'" � ® AVERY® sime 54 EXHIBITION LANE LLC 1185 PARK AVE #11 K NEW YORK, NY 10128 ANDERSON JON & LORI 43 EXHIBITION LN ASPEN, CO 81611 ASPEN HIGHLANDS COMMERCIAL METRO DIST 715 W MAIN ST #304 ASPEN, CO 81611 ASPEN HIGHLANDS CONDO ASSOC INC ASPEN HIGHLANDS VILLAGE AFF 0075 PROSPECTOR RD HOUSING ASPEN, CO 81611 C/O ABACUS BOOKKEEPING 52 BAYVIEW TER MILL VALLEY, CA 94941 -2495 ASPEN SKIING COMPANY LLC PO BOX 1248 ASPEN, CO 81612 BERGDAHL MATTHEW A & ELIZABETH A 0011 EXHIBITION LN ASPEN, CO 81611 BURROWS HUGH & SARA 0115 BOOMERANG RD #5106 ASPEN, CO 81611 EASTWOOD HIGHLANDS INVESTORS 85.72% 0115 BOOMERANG RD #5201 ASPEN, CO 81611 FORAN EDMUND C & BARBARA 45 EXHIBITION LN ASPEN, CO 81611 LYONS DAVID C 0155 BOOMERANG RD #5409 ASPEN, CO 81611 MEYERSTEIN TRUST 0115 BOOMERANG RD #5103 ASPEN, CO 81611 PELLEGRINI VINCENT D REV TRUST 601 LAKELAND RD SOUTH SEVERNA PARK, MD 21146 PISANI MARK & JILL 31 EXHIBITION LN ASPEN, CO 81611 3 Etiquettes faales A peter Utilisez le gabarit AVERYm 5160 BUYSSE MICHAEL 0115 BOOMERANG RD #5107 ASPEN, CO 81611 FAGAN CHARLES D PO BOX 1107 ASPEN, CO 81612 LISMAN ADRIANA 0115 BOOMERANG RD - #5308 ASPEN, CO 81611 ASPEN HIGHLANDS VILLAGE PARK & LOAD C/O BEACH RESOURCE MANAGER 133 PROSPECTOR RD # 4210 ASPEN, CO 81611 BUILDING 7 LLC C/O ASPEN SKIING COMPANY PO BOX 1248 ASPEN, CO 81612 DOMOSZLAY KATALIN 0115 BOOMERANG RD #5410 ASPEN, CO 81611 FEHER LAWRENCE D 0115 BOOMERANG RD #5404 ASPEN, CO 81611 LOT 4 PYRAMID POINT ESTATES LLC C/O RICHARD A WAX ASSOC LLC PO BOX 7699 ASPEN, CO 81612 MAROON NEIGHBORHOOD TOWNHOME ASSOC MBEREKO ISAAC TP &LAUREN P 402 WIDGET ST PO BOX 10296 BASALT, CO 81621 ASPEN, CO 81612 NERAL CHRISTOPHER J 0115 BOOMERANG RD #5405 ASPEN, CO 81611 OCONNELL DANIEL S & GLORIA P 16 ROCK RIDGE AVE GREENWICH, CT 06831 PERGANDE DON W & ROSALYN 0115 BOOMERANG RD #5102 ASPEN, CO 81611 PITKIN COUNTY 530 E MAIN ST #302 ASPEN, CO 81611 Sens de Nephez A Is hachure afin do rlvAier le rebord Pop-Up ' characmrnt , PI CASTLE ROCK LLC 14.28% 3033 E 1 STAVE #502 DENVER, CO 80206 PURCELL ERICA 0115 BOOMERANG RD #5403 ASPEN, CO 81611 www.avemcom 1. 800 -GO -AVERY ' • Bond Nona IN* to I 5160 J' Feed Pape — eapoeo PaaUP Edgetl1 ®AVERY® 5160 l REITHER LINDSAY A 115 BOOMERANG RD #5406 ASPEN, CO 81611 SHANKS ROBERT H 0115 BOOMERANG RD #5304 ASPEN, CO 81611 STEWART MILTON M JR & CAROLE C 0115 BOOMERANG RD #5103 ASPEN, CO 81611 TAYLOR JOSEPH W & NORA S 0115 BOOMERANG RD #5108 ASPEN, CO 81611 TWOHIG PAUL & CAROL ANN PO BOX 2830 ASPEN, CO 81612 THOMPSON JESSE 0115 BOOMERANG RD #5408 ASPEN, CO 81611 UMBARGER MARK R 0115 BOOMERANG RD #5407 ASPEN, CO 81611 TIERNEY MICHAEL P & ANNE PO BOX 2391 ASPEN, CO 81612 WITT PATRICIA 0115 BOOMERANG #5109 ASPEN, CO 81611 Ll /���r N ttlquettes faclles a peler (ltd ISP) In rmhanf AVFRV Sens de Repliea a la hachure afin de www.avery.com .._... I RECEPTION#: 579879, 05/13/2011 at 11:10:35 AM, 1 OF 3, R $0.00 Janice K. Vos Caudill, Pitkin County, CO RESOLUTION OF THE PITKIN COUNTY, COLORADO BOARD OF ADJUSTMENT GRANTING MAJOR ROAD AND SIDE YARD SETBACK VARIANCES FOR THE RECONSTRUCTION OF RETAINING WALLS AT LE CHAMONIX CONDOMINIUMS Resolution No. 042011 WHEREAS, Le Chamonix Association Inc, owner of 1501 Maroon Creek Road, is requesting approval of a Major Road and Side Yard setback variances where 100 feet and 20 feet respectively are required for the re- construction of a failing retaining wall; and WHEREAS, the lot contains approximately 2 acres, is located in the AR -10 zone district, and is more fully described in Exhibit A; and WHEREAS, the Board of Adjustment is vested with the power to grant or deny such variances by virtue of Title II, Section 7- 10.30, Firkin County Code (Land Use Code) and Colorado Revised Statutes, 1973, 30-28- 118(2) (C); and, WHEREAS, based on the evidence presented, the Board of Adjustment makes the following findings: 1. Proper notice procedures, including the notification of all adjoining property owners, has been sbown by the applicant 2. The required hardship or practical difficulty has been established 3. Granting such relief will not cause substantial detriment to the public welfare and will not substantially impair the intent and purpose of the Zoning Resolutions and the zoning maps. NOW, THEREFORE, BE IT RESOLVED by the Board of Adjustment that Major Road and Side Yard setback variances be granted for the re- construction of the retaining wall shown on Exhibit B, due to topographic hardships. WARNING: Any violation of the terms of this resolution may result in rehearing and possible revocation. The Resolution was adopted by vote of the Board of Adjustment of the County of PitkK State of Colorado. DATED: May 3, 2011 ATTEST: s /qtl anus S. s ter, Hate Pitkin CoWry Zoning Officer Parcel MN 273514202001 -012 /6 - P3 - cLeo Date Co- Chair, Board of Adjustment RECEPTION#: 579879, 05/13/2011 at 11:10:35 AM, 2 OF 3, Janice K. Vos Caudill, Pitkin County, CO DESCRIPTION - A TRACT OF LAND LOCATED IN THE SWI 14NWI/4 OF SECTION 14, TOWNSHIP 10 SOUTH, RANGE 55 WEST OF THE 6TH P. M., IN PITKIN COUNTY, COLORADO; SAID TRACT IS MORE FULLY DESCRIBED AS FOLLOWS: 'BEGINNING AT.A POINT ON THE NORTHWESTERLY RIGHT OF WAY LINE OF THE MAROON CREEK ROAD WHENCE THE RELOCATED WITNESS CORNER TO THE WEST 1/4 CORNER OF SAID SECTION 14 ( SAID RELOCATED WITNES 5 CORNER BEARS SOUTH 86,33 FEET FROM THE ORIGINAL LOCATION) BEARS S,57 20.00 FEET AND S.44 - W. 378.87 FEET; THENCE N,57'06'E. 460.00 FEET ALONG SAID RIGHT OF WAY; THENCE N. 33'06' W. 75.67 FEET; THENCE S,5W5 W. 44.47 FEET; THENCE N,63 223 FEET, MORE OR LESS, TO THE CENTER LINE OF MAROON CREEK; THENCE SOUTHWESTERLY ALONG THE CENTER LINE OF MAROON CREEK 270,00 FEET, MORE OR LESS: THENCE S.18'30'E. 205 FEET, MORE OR LESS, TO THE POINT OF BEGINNING; CONTAINING 2 ACRES, MORE OR LESS. 9 RECEPTION#: 579879, 05/13/2011 at 11:10:35 AM, 3 OF 3, Janice K. Vos Caudill, Pitkin County, CO �3 C f 1A A)Dft nw re+OIAIA e �v lu Wit( - aw& ZIA*- w 414- 2 Pb- vE eNIMAMt 'vv rVV1 KUAUWAY CK. Akoti t L E ZMA . ..... ProNr+q Qne- X-16b encraMwil-I 2 Pro �� av�a -m - Tvi-al entroaLKIr"t if 0 Acrm&ff Yb jz Taw SEDOND LEVEL DEcx I N &R. RE RETA RMNG ND DEOC (WrfpcAL) N, C f 1A A)Dft nw re+OIAIA e �v lu Wit( - aw& ZIA*- w 414- 2 Pb- vE eNIMAMt Bonnie Waechtler Subject: FW: Le Chamonix Attachments: affidavit code sec 2_20_100.doc From: Bonnie Waechtler Sent: Friday, March 25, 2011 1:13 PM To: 'Glenn Horn' Subject: Le Chaminox PITKIN COUNTY COMMUNITY DEVELOPMENT DEPARTMENT 130 S. Galena Street Aspen, Colorado 81611 (970) 920 -5526 FAX # (970) 920 -5439 March 25, 2011 Glenn Horn 0215 South Monarch Street, Suite #104 Aspen, CO 81611 he orngro£ net Re: Le Chamonix Activity Envelope, Site Plan and Special Review for Bank Restoration (PID 2735- 142 -02 -001 thru 012; Case P019 -11) Dear Mr. Horn: The Planning Office has completed its preliminary review of the captioned application. We have determined that this application is complete. After a more detailed review of the submittal information, additional information specific to the application may be requested in order to adequately review and process the application. The planner in charge of the review will request the information from you directly. We have scheduled this application for review at a public hearing by the Board of County Commissioners on Wednesday, May 11, 2011 at a meeting to begin at 12:00 P.M. in the Plaza One Conference Room, 530 East Main Street, Aspen. Shoulc this date be inconvenient for you, please contact me within 3 working days of the date of this letter. After that the agenda date will be considered final and changes to the schedule or tabling of the application will only be allowed for unavoidable technical problems. The Friday before the meeting date, we will call to inform you that a copy of the memo pertaining to the application is available at the Planning Office. Please note that it is your responsibility to post a public notice sign on the property at least fifteen days prior to the hearing (and remove it within one week after) and to mail notice to all property owners and mineral estate owners within 300' of the subject property at least 30 days prior to the hearing with the return address of the Community Development Department (copy of notice will be sent to you by the Community Development Department). The names and addresses shall be those on the current tax records of Pitkin County as they appeared no more than 60 days prior to the date of the public hearing. Please submit the enclosed Affidavit of Notice by Posting & Mailing as proof of compliance with the Code at the hearing. If you have any questions, please call Mike Kraemer, the planner assigned to your case, at 920 -5482. 1 0-1 Sincerely, Bonnie Waechtler Administrative Assistant Encl: Affidavit of Notice (Code Section 2 -20 -100) Bonnie Waechtler To: Catherine Berg; 'ed.van @aspenfire.com'; 'loewells @me.com' Cc: 'barbaraconviser @aol.com' Subject: Pitkin County Land Use Le Chamonix application PITKIN COUNTY COMMUNITY DEVELOPMENT DEPARTMENT 130 South Galena Street Aspen, Colorado 81611 Phone (970) 920 -5526 FAX (970) 920 -5439 MEMORANDUM TO: Pitkin County Engineer Colorado Division of Wildlife Maroon/Castle Creek Caucus FROM: Mike Kraemer, Community Development Department Michael.kraemer@co.pitkin.co.us RE: Le Chamonix Activity Envelope, Site Plan and Special Review for Bank Restoration (CASE P019 -11; PID 2735- 142 -02 -001 thru 012) DATE: March 25, 2011 Attached for your review are materials for an application submitted by Le Chamonix owners. The Board of County Commissioners wit] review the application on Wednesday, May 11, 2011. Please return your comments to me by Friday, April 27, 2011. http: / /www aspenpitkin com /Portals /0 /docs/ county /Com %2ODev /Planning /Land Use Applications /P019 11 app.pdf If you require a paper copy of this application contact Bonnie Waechtler at bonnie .waechtler @co.pitkin.co.us or 920- 5109. BONNIE WAECHTLER ADMINISTRATIVE ASSISTANT TO PLANNING AND ZONING Pitkin County 130 South Galena 3rd Fl Aspen, Co 81611 970 - 920 -5109 bonnie.waechtlerkco.pitkin.co.us 1 Q - TTq t 9►n;,J - r A PITKIN COUNTY COMMUNITY DEVELOPMENT DEPARTMENT 130 South Galena Street Aspen, Colorado 81611 (970) 920 -5526 FAX# (970) 920 -5439 ul l ►Iilllul To: Mike Kraemer FROM: Catherine Berg, Planning Engineer Re: Le Chamonix DATE: April 22, 2011 After reviewing the application I propose the following conditions: ➢ A detailed drainage and erosion control plan shall be submitted with each development permit. If the total development disturbs one (1) acre or more a State Stormwater Permit shall be applied for and obtained. All historic and natural drainage patters shall be maintained, and day lighting shall be avoided on steep slopes. Stormwater shall be detained onsite and allow infiltration of runoff prior to discharge. ➢ A detailed revegetation plan will be required. The plan shall speak specifically to the reclamation of the disturbed steep slopes. Plan shall be reviewed and approved by Pitkin County Community Development. Financial security may be required. ➢ A tree mitigation plan shall be submitted for the removal of any trees larger than six (6) inch DBH. ➢ The applicant shall submit a detailed Construction Management Plan with each development permit that addresses all phases of construction. The plan shall address all access to the site and to the steep slopes on the downhill side of the structure. All OSHA requirements shall be adhered to. ➢ A County ROW permit shall be obtained from the Public Works Department for any work within the County's ROW. ➢ The applicant shall provide adequate engineering of any retaining walls over four (4) feet in height and/or any improvements to walls over four (4) feet in height. All retaining walls shall be a maximum of seven (7) feet tall. ➢ The applicant shall apply for and obtain an Earthmoving, Clearing and Grubbing Permit for retaining wall replacement work. off PITKIN G"NTY COMMUNITY DEVELI,, MENT Permit Receipt RECEIPT NUMBER 00030607 Name: La Chamonix Association Inc Date:3/11/2011 Project Address: 1501 MAROON CREEK RD Type: check # 1384 Permit Num Fee Description Amount 0019.2011.PLAN PP- Flat Fee 624.00 Total: 624.00 I CY"+ L PITKIN Oo4UNTY COMMUNITY DEVELd.JMENT Permit Receipt RECEIPT NUMBER 00030608 Name: Le Chamonix Association Inc Date:3/11/2011 Project Address: 1501 MAROON CREEK RD Type: check # 1376 Permit Number 0019.2011.PLAN 0019.2011.PLAN 0019.2011.PLAN 0019.2011.PLAN 0019.2011.PLAN Fee Description Amount PP- Flat Fee 3,120.00 PP- Clerk Fee 375.00 PP- Clerk Tech Fee 25.00 PP- Public Notice Fee 54.00 PP- Planning Eng Referral Fee 1,248.00 Total: 4,822.00