Drop Inlet Protection

Drop inlet protection devices are either temporary silt sacks or catch basin filters that restrict sediment and other contaminants from entering storm drainage systems. A variety of methods may be used to intercept sediment at low point inlets through the use of depressed grading, filter stone, filter fabric, inlet inserts, organic filter tubes and other materials. The drop inlet protection devices are placed over or within inlet openings to provide localized detention or filtration of sediment and floatable materials in stormwater as even further precaution.