SEDSPEC Sediment and Erosion Design and SPECification Tool Dr. M. Sharif USACERL (800) ext Dr. Bernie Engel, Purdue University

SedSpec Introduction SedSpec (a WWW-based tool) provides the necessary calculations to provide approximate sizes and costs of hydrologic and erosion control structures Channels (grassed, open, riprap, concrete) Culverts Sediment basins Terraces Runoff diversions Storm water detention basins

SedSpec Introduction SedSpec utilizes TR 55 or the Rational Method to compute peak rates of runoff. Database holds rainfall depths User provides data in a web form

SedSpec BMP Introduction Provides information about construction and maintenance Experience reports

Rational Method Estimates peak rate of runoff Simple, widely used Requires land use, soil, flow length, slope

SedSpec