Laserfiche WebLink
• <br />Chapter 4-Site-Specific Industrial Storm Water BMPs <br />arv Sediment .Basin <br />VYhat Is It <br />A temporary sediment basin is a settling pond with a controlled storm water release structure used <br />to collect and tore sediment produceby construction <br />earthen embankment across a low area or drainage <br />constructed by excavation or by placing an <br />swale. Sediment basins can be designed areas <br />The b long enough to allow most of <br />The basin detains sediment-laden runoff from lager drainage a <br />the sediment to settle out. rovide some <br />sediment The pond has a gravel outlet or spillway in helps tpre prevent clogging of offsite conveyance sy ems <br />filtration. By removing sediment, the bas <br />and sediment-loading of receiving waterways. In this way, the basin helps prevent destruction o <br />waterway habitats. <br />Control Section <br />Emergency spillway <br />should not be <br />constructed <br />over fill <br />x material <br />'?ermaaenf`Pac?1= <br />Plan View <br />Sediment <br />Storage and <br />Permanent Pool <br />Minimum Storeg° <br />volume <br />-4 <br />/ El? <br />Dews teri ng <br />Outlet <br />A? <br />Cross Section AAA <br />FIGURE 4.26 TEMPORARY SEDIMENT BASIN <br />(Modified from Commonwealth of Virginia, 1980) <br />I <br />• <br />• <br />4-88