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<br />Page 42 <br /> <br />h. Energy dissipators <br />1. Hydraulic grade lines <br />j. Minimum and maximum velocities <br /> <br />B. DRAINAGE PLAN SHEET(S) <br /> <br />1. SITE LOCATION MAP - a portIon from the Map in Appendix D <br />a. Major drainage basin <br />b. Sub basin boundaries and acreage <br />c. Floodway and Flood Plain area <br />d. Site location <br /> <br />2. SITE DRAINAGE PLAN - SHOW THE FOLLOWING: <br /> <br />1. Existing and proposed 2-foot contours based on USGS datum <br />(existing contours to extend at least 50' beyond property <br />line. ) <br />2. Local1on and elevation of USGS benchmarks or benchmarks <br />referenced to USGS. <br />3. Existing and proposed property lines. <br />4. Present dra inage easements. <br />5. Street names and grades. <br />6. Right-of-way'and easement requirements. <br />7. Routing and accumulative flows at the upstream and down- <br />stream ends of the site and at various critical points <br />on-site for both initial and major storm run-off. The <br />inflow and outflow from each subbasin shall be shown for <br />both the initial and major storms. <br />*8. Finished floor elevations for protection from major storm <br />run-off. <br />*9. Street cross-sections showing the 100-year flood levels. <br />10. Existing and proposed flood plains and major channels. <br />] 1. DetentiOn pond design and drawings including the foJ Low- <br />ing: <br />a. Location of each detention area <br />b. Release rates for 5 year and 100 year storms. <br />c. Storage volumes required and provided. <br />-:(d. Site plan on ]" = 50' scale or larger with two-foot <br />contour intervals. <br />*e. Inlet and outlet structure design details and opera- <br />tional data (5 year and 100 year depths). <br />'\of. Emergency excess storm water passage design details. <br />*g. Side slopes. <br /> <br />*12. Open channel flow in major channels shall be provided WIth <br />the following information for both storms: <br /> <br />a. Profiles showing existing and proposed channel grades <br />and water surface profiles. <br />b. Cross-sections on 100-foot stations showing existing <br />and proposed cross sections and required rights-of- <br />way. <br />c. Locations and size of all existing and proposed <br />structures. <br />