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HomeMy WebLinkAboutDrainage Design Report u u o u u U D U o U ('." U u U lJ U U U U U .. , ~ ill,.' ' ~~. "', JU~ 2.lj r.-IJ". }'~., ,',,"" .,~~ - I \ '~. ,,' , ;," Drainage Design Report / for St. Vincent Heart Center Helipad Carmel, Indiana Prepared for: St. Vincent Health, Inc. 8425 Harcourt Road Indianapolis, IN 46260 June 20, 2008 72u~ Christopher Wiseman, PE: INDI,ANA PE;l 0~049~O ,~ Cripe ~ Architects + Engineers Solutions by Design Since 1937 7172 Graham Road Indianapolis. Indiana 46250 Telephone 317842 6777 Facsimile 317 841 4798 www.cripe.biz PIC 080358-20000 u u u u U J U o u U D U J LJ U U U U U DRAINAGE REPORT FOR Sf. Vincent Heart Center Helipad TABLE OF CONTENTS 1 .0 In tr 0 due t ion ..................................................................................................................... 2 1.1 Project Descriptions............................................................... .......... ................. 2 1 .2 Drainage Analysis .............. ...... ............... ....... ....................... ... ............... .... ........ ...... ...... 2 1.3 Water Quality Ananlysis .................................................................................................2 1 .4 Conclusions ....... ........ ........ ..... .................... ................ ....................... ......."'..................... 2 .APPENDICES A. Impervious Area Exhibit 1 u o o u [J D U U U U o U o D o U [J U [J 1.0 INTRODUCTION This report outlines the proposed stormwater management system designed to serve the proposed st. Vincent Heart Center Helipad parcel in Carmel, II~. 1, ] Project Descriptions This project consists of the construction of a new moveable helipad, sidewalk, and a new driveway to the helipad. Currently the site is composed of on existing parking lot. landscaping, and grass area, 1.2 Drainage Analysis This area has been previously designed and approved by the Hamilton County Surveyor's Office and the City of Carmel. Due to being previously approved and designed and since the overall storm water discharge has been reduced in the developed state, no detention has been provided. (Refer to Appendix A for Exhibit) 1.3 Water Quality Analysis The St, Vincent Heart Center Helipad project ties in to tile existing water quality system in place, which is the wet detention ponds. The developed conditions also adds a gross strip adjacent to the helipad which will function os a filter strip for water quality treatment prior to the storm water entering the storm sewer which ultimately discharges into the existing wet pond which will remove any remaining pollutants. 1.4 Conclusions This development's storm water quality and detention requirements meet or comply with the previously submitted and approved construction plans and also meets the current requirements set forth by the local governing ordinances for redeveloped areas. 2 o u o U D U U U U o o u o o o U D U o APPENDIX A Impervious Area Exhibit