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I <br /> I <br /> Solve For [Depth of Flow t <br /> F{awrate cis 2 8500 Pipe Shape.CirctAar <br /> I <br /> 4. <br /> Slope ft/ft 0.0050 i Select <br /> I <br /> Manning's n 0.0120 1 Select <br /> Depth of Flow in 10.3962 , <br /> Diameter P 12.D000 ISelect <br /> , Plot <br /> Velocity fps 3.9423 <br /> 1 I <br /> AreaOutput <br /> ft2 i}.7854 1 <br /> Perimeter in 37.6991 <br /> Critical <br /> Wetted Area 1t2 0.7229 P <br /> Wetted Perimeter in 28.7170 I <br /> Hydraulic Radius in 3.6251 Cancel € <br /> Percent Full % 86.6351 itHEAP <br /> 1 I <br /> 100-Year Flood/Overflow Condition <br /> The stormwater conveyance system for this project has been designed to address storm events in I <br /> accordance with common industry practices. In the event of a larger storm, the system may fail <br /> due. In this case, the runoff from larger events will overflow to the city drainage system that follows <br /> the same downstream path as site runoff. (See offsite analysis report section) I <br /> G. Operation and Maintenance Manual I <br /> The owner or operator of the project shall be responsible for maintaining the stormwater <br /> facilities in accordance with local requirements. Proper maintenance is important for I <br /> adequate functioning of the stormwater facilities. Operations and maintenance guidelines <br /> have been provided below. <br /> I <br /> I <br /> 6/16/2011 Stormwater Site Plan Page 33 I <br />