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HomeMy WebLinkAboutSite Certifications - 05/07/2004April 15, 2004 Project No: 1909-02-03 Jay Barber City of Fort Collins Stormwater Utility P.O. Box 580 Ft. Collins, Colorado 80522 S REM VED� APR 16 2004 Re: Lots 23-27, Pinnacle Townhomes P.D.P.; Fort Collins, Colorado 1603 Robertson Street Dear Jay, SHEAR ENGINEERING ca"ORMION This letter serves as final certification for the above referenced address according to the requirements of the Stonrwater Utility in the Stormwater Building Permit Notice for this address dated 02/12/2003 and the requirements of the development agreement as they relate to flood protection. Certifications include the items noted on the Stormwater Building Permit Notice and are as follows: • Grading certification • Swale certification • .Finished floor elevation certification • Property lot corner elevation certification • Lowest building opening elevation certification We have visited the site and find that all final grading is complete, functions properly and meets the intent of the original subdivision grading and drainage design according to the Final Utility Plans prepared by Shear Engineering Corporation for Pinnacle Townhomes P.D.P.; Shear Engineering Corporation Project No. 1555-02-00; City of Fort Collins Director of Engineering approval date September 4, 2002. All final grading is also in conformance with the site -specific grading plan prepared by Shear Engineering Corporation dated July, 2003; Shear Project No: 1909-02-03. A copy of the site -specific grading plan is attached for your immediate reference. This same plan was previously provided to you on 08/20/2003. The 100-year water surface elevation for this address is 4953.12 as shown on the table of the "Base Flood Elevation vs. Minimum Opening Elevation" provided on Sheet 17 of 28 of the approved Final Utility Plans for Pinnacle Townhomes P.D.P. For a full basement unit at Pinnacle Townhomes P.D.P, the minimum allowable opening elevation for basement windows may be at the same elevation as the 100-year floodwater surface elevation according to detail F 1-2, also provided on Sheet 17 of 28 of the approved Final Utility Plans for Pinnacle Townhomes P.D.P. The actual lowest opening elevation for this address is 4956.39 based on actual field data. This is 3.27 feet above the 100-year water surface elevation. Attached is a copy of Sheet 17 of 28 of the approved Final Utility Plans for Pinnacle Townhomes P.D.P. Also attached is a copy of the Master Grading Plan (Sheet 18 of 28) for Pinnacle Townhomes P.D.P. Field shots were obtained by Shear Engineering Corporation and are noted on the attached copy of the site specific grading plan. ,m�d 51141e/ 4836 S. College, Suite 12 Ft. Collins, CO 80525 (970) 226-5334 Fax (970) 282-0311 www.shearengineering.coni a , J PAGE 2 April 15, 2004 Project No: 1909-02-03 Re: Lots 23-27, Pinnacle Townhomes P.D.P.; Fort Collins, Colorado 1603 Robertson Street If you have any questions, please call at (970) 226-5334. attachments cc: John Walz; John Walz Enterprises, Inc Marsha Hilmes-Robinson; City of Fort Collins Floodplain Administrator 4 6o \ I 60.32 \� VCIREC110N'--- 2.0% 40' VC 2.0% 2:0114 9.88 60.58 2.02% 2.422 - - 1 L.2%1 2% PV 60.1 (PVI 59.74) PVT 5 . 9 b3% PVC 60.45 (PVI 60.76) PVT 60.361 `6?s 59176 459.3C \ ul Fr.fa) ' PROJECT D. i 59.83- '00 UTILITY ESM T. Ld i v SION 59� 0 60.33 60.33 : 6_ - - - 60.00 n HIGH WALL M li M 2 I m •6D. - - - - -I 59.62 • e. 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