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Home My WebLink AboutFile Documents.395 Thunderbowl Ln.0153.2017 (10).ARBK The permit processing time is stopped on this review and will not begin again until all issues from all review agencies are addressed and the corrections are approved for resubmittal. At that time, your resubmittal will re-placed in the queue with other permits being processed. Sent via e-mail To: Josh Rice josh@woodycreekengineering.com (970) 429-8297 David Johnston david@djarchitects.com (970) 925-3444 From: Hailey Guglielmo Development Engineer, City of Aspen Phone 970/429-2751, Fax 970/920-5081 hailey.guglielmo@cityofaspen.com Date: September 7, 2017 Permit Ben Chase Coordinator: 429-2763 Re: Permit No. 0153.2017.ARBK, 395 Thunderbowl These design documents have been reviewed for conformance with the Engineering Design Standards and Urban Runoff Management Plan as adopted and amended by the City of Aspen. State and Federal regulations are administered where applicable. The attached comments must be addressed. Please revise and redraw the plans to clearly respond to the attached comments. Plan corrections cannot be made on the blueprints (i.e., red-lined). All changes must be made to the originals prior to making prints. Revised drawings must clearly show code compliance. In addition, please resubmit this comment letter with your written response to each comment. Your response should indicate which detail or specification page shows the required information. Responses such as “will comply with code” are not adequate. Finally, please provide both a physical copy and a digital file of your resubmission. The comment letter should be a Word document. If you have any questions specifically regarding the comments below, please feel free to contact me directly. If you have questions regarding the status of other review agencies' comments, the status of your permit in the queue, or general permitting questions, please contact your Permit Coordinator. (See above for phone numbers.) IMPORTANT NOTE: Engineering plan check is only one part of the often complex process by which projects are reviewed for approval. These parts are interrelated and are sometimes conflicting. Because we are issuing these first review round comments prior to the time that all review agencies have completed their work, you are receiving incomplete comments from the City as a whole. It is ultimately the applicant’s responsibility to respond to the requirements of ALL review agencies. If you choose to begin updating plans and responding to comments prior to receiving feedback from ALL review agencies, you assume any and all risks associated with needing to adjust, update, modify, or otherwise redo your work. 1/16/18 The permit processing time is stopped on this review and will not begin again until all issues from all review agencies are addressed and the corrections are approved for resubmittal. At that time, your resubmittal will re-placed in the queue with other permits being processed. When you have received and addressed ALL items from ALL review agencies, please call 970-920-5090 to schedule a required appointment for re-submittal with your Permit Coordinator. You will be required to bring a copy of this letter, along with ALL other staff comment letters, with ALL responses and required documentation. If all items listed have not been addressed, the resubmittal will be deemed incomplete, and will not be accepted. Once the standards of the Urban Runoff Management Plan standards and requirements are met, the Development Engineer can sign off on the requested permit. If you have any questions or concerns about any of the items shown, please feel free to contact me. IMPORTANT: The City of Aspen Engineering Department is requiring that all stormwater BMP’s be inspected throughout the construction process to ensure BMP’s are installed per the approved plans. Please contact Hailey Guglielmo at (970) 429-2751 48 hrs prior to construction of each stormwater BMP. Sincerely, Hailey Guglielmo, EIT Development Engineer 970-429-2751 1/16/18 Engineering Round1_0153.2017.ARBK_395 Thunderbowl 9-7-2017 Page:[1] 1 COVER SHEET - Cover Sheet C0.0 Author:haileyg File Name: CIVIL.395 THUNDERBOWL.2017.07.13.pdf An Excavation and Stabilization plan was not submitted with the permit set. Please provide. CIVIL.395 THUNDERBOWL.2017.07.13.pdf (7) Page:[7] 8 Thunderbowl 20170620 - C4.0 DETAILS Author:haileyg File Name: CIVIL.395 THUNDERBOWL.2017.07.13.pdf Call out 18" minimum depth of amended native material, 70% sand 30% topsoil. Page:[8] 6 Thunderbowl 20170620 - C5.0 UTILITIES Author:haileyg File Name: CIVIL.395 THUNDERBOWL.2017.07.13.pdf Overlay landscaping plan with the utility plan. Ensure no conflicts. Page:[8] 6 Thunderbowl 20170620 - C5.0 UTILITIES Author:haileyg File Name: CIVIL.395 THUNDERBOWL.2017.07.13.pdf Does this transformer have an adequate easement? It is not shown on the survey. How much of the transformer sits on this property? If no easement exists, one needs to be recorded prior to permit issuance. Page:[8] 6 Thunderbowl 20170620 - C5.0 UTILITIES Author:haileyg File Name: CIVIL.395 THUNDERBOWL.2017.07.13.pdf Call in utility locates and show water main line on the plans. Show the exact tap location. An Excavation and Stabilization plan was not submitted with the permit set. Please provide. 3.00 FT Call out 18" minimum depth of amended native material, 70% sand 30% topsoil. Overlay landscaping plan with the utility plan. Ensure no conflicts. Does this transformer have an adequate easement? It is not shown on the survey. How much of the transformer sits on this property? If no easement exists, one needs to be recorded prior to permit issuance. Call in utility locates and show water main line on the plans. Show the exact tap location. See Shoring Plans and memo stating feasability of shoring options Callout has been added. Landscape has been shown. Transformer will be accessed from subject property only The utility locates and tap location are now shown. 1/16/18 The soil nails do not stay within the building envelope. The PD amendment needs to be approved before I can sign off on the permit. Landscape is not shown on any sheet. I think a layer is turned off, as information that was on the last submittal is not shown on these sheets. Page:[8] 6 Thunderbowl 20170620 - C5.0 UTILITIES Author:haileyg File Name: CIVIL.395 THUNDERBOWL.2017.07.13.pdf Water service lines shall be as short as feasible. There is a water main along Thunderbowl Ln south of the property which could be tapped. Page:[8] 6 Thunderbowl 20170620 - C5.0 UTILITIES Author:haileyg File Name: CIVIL.395 THUNDERBOWL.2017.07.13.pdf Utilities shall be routed around the raingarden to avoid damage from additional infiltration. Page:13 Author:haileyg File Name: Thunderbowl Drainage Report.pdf Throughout the rest of the Drainage Report an impervious area of 27% was used, not 31%. Based off Table 1, 27% seems accurate. Please verify. Thunderbowl Drainage Report.pdf (1) Water service linesshall be as short as feasible. There is awater main along Thunderbowl Ln southof the property which could be tapped. Utilities shall be routed around the raingarden to avoid damage from additional infiltration. culation uirements, WCE calculated the total area of the basins, the impervious area centration of the basins. Overall, the basins total area equals 0.693 acres, uals 0.212. The time of concentration for existing basins was found to be usness of 31% percent, the WQCV in watershed inches is 0.065 in (see Ap- e, the WQCV over the tributary area of 0.693 acres is 163.6 cf (0.065 ac X / 12 in). The proposed grading of the site, as well as pipe networks, route ng the north end of the lot. This area provides 484.8 cf of detention ((10ft X equate for the detention required for the 100 year storm (429 cf). ation Pipe D Pipe A Rain Garden PB:1.0 Rain Garden DS 1 Inlet 10 Pipe D Pipe A Rain Garden PB:1.0 Rain Garden ongue 1 Inlet 4 Pipe A Rain Garden PB:1.0 Rain Garden ongue 1 Inlet 4 Pipe A Rain Garden PB:1.0 Rain Garden y Trench Drain Pipe B Rain Garden PB:1.0 Rain Garden Pipe B Rain Garden PB:1.0 Rain Garden y Trench Drain Pipe B Rain Garden PB:1.0 Rain Garden y Trench Drain Pipe B Rain Garden PB:1.0 Rain Garden Throughout the rest of the Drainage Report an impervious area of 27% was used, not 31%. Based off Table 1, 27% seems accurate. Please verify. The water service has been shown Utilities have been routed around rain garden. The report has been updated. 1/16/18 1/16/18 1/16/18 1/16/18 1/16/18 1/16/18 1/16/18 1/16/18 1/16/18 1/16/18 1/16/18