V08C_24- Storm Water Hydrographs and Their Use

This course is a comprehensive coverage of stormwater runoff hydrographs and their use. It will be of interest to consulting engineers, municipal and county engineers, highway and construction engineers, as well as, site developers and planners, or anyone interested in learning methods for calculating and designing stormwater drainage systems to accommodate stormwater runoff from large drainage basins. The basics of hydrograph development based on mass balance are presented, as well as, methods for measuring the necessary parameters (precipitation, evaporation and stream flow). Unit hydrographs are developed from existing hydrographs and synthetic unit hydrographs are calculated using Natural Resources Conservation Service methods. The usefulness of unit hydrographs to allow development of runoff hydrographs for any storm condition is discussed. A simplified Rational Method unit hydrograph is presented which is useful in designing stormwater detention and retention ponds.

Course Length: 3 Hours, ( 0.3CEUs or 3PDHs or 3CPCs )