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HomeMy WebLinkAboutPlan Review 4-29-11April 29, 2011 Mr. Brian Cross, P.E. Civil Site Group, Inc. 643 Massachusetts Ave., Suite 200 Indianapolis, IN 46204 RE: Walnut Creek Drive Extension Dear Mr. Cross: Technical Advisory Committee Engineering Review for Development Drainage Designs CROSSROA ENGINEERS, PC The stormwater review of the proposed construction plans and drainage calculations for the above referenced project has been completed. The submittal is still in need of additional information in order to be in compliance with the City of Carmel Stormwater Technical Standard Manual (the manual). Please revise the plans in accordance with the comments below. 1. Per Section 102.02.xi.m of the manual, please provide a drainage summary on the development plan (Sheet C2.0), which summarizes the basic conditions of the drainage design, including site acreage, off site /upstream acreage, allowable release rates, post developed 10 -year, and 100 -year flows leaving the site. Please incorporate the basin characteristics shown in the drainage report appendix II, Part B, page EX1, into sheet C2.0 2. Per Section 102.02.xiv of the manual, please provide a Structure Data Table shall be provided in the plan set. 3. Per Section 102.03.i.d of the manual, please provide hydraulic grade line calculations for the proposed storm sewers. Please include with your submittal, one (1) copy of the comments indicating the action taken or a written explanation for action not taken. Construction plans and drainage calculations are not to be re- submitted without implementing changes with respect to any and all review comments from the City of Carmel and the Hamilton County Surveyor's Office. The comments and plans may be submitted to my attention at the following address: Please contact me at (317) 780 -1555 ext. 112 with any questions. Sincerely, CrossRoad Engineers, P.C. GregorwJ'°ko, P.E. Project Manager CrossRoad Engineers, P.C. 3417 South Sherman Drive. Beech Grove, IN 46107 copy: Gary Duncan, City of Carmel Assistant Engineer Greg Hoyes, Hamilton County Surveyors Office File 3417 Sherman Drive Beech Drove, Indiana 45107 Tel 317.7B0.1555 Fax 317.780.6525