Nacto Sumpinlet bio.jpg| An inlet sump leading into a bioretention bump out for traffic calming. Inlet sumps help both settle and separate sediment from stormwater road runoff before depositing excess sediment and silt into an infiltration BMP. These sumps allow stormwater to flow into the feature through an [[underdrain]] pipe (Source: NACTO, 2017)<ref>National Association of City Transportation Officials (NACTO). 2017. Urban Street Stormwater Guide - Inlet Design. Retrieved from: https://nacto.org/publication/urban-street-stormwater-guide/stormwater-elements/bioretention-design-considerations/inlet-design/</ref> | Nacto Sumpinlet bio.jpg| An inlet sump leading into a bioretention bump out for traffic calming. Inlet sumps help both settle and separate sediment from stormwater road runoff before depositing excess sediment and silt into an infiltration BMP. These sumps allow stormwater to flow into the feature through an [[underdrain]] pipe (Source: NACTO, 2017)<ref>National Association of City Transportation Officials (NACTO). 2017. Urban Street Stormwater Guide - Inlet Design. Retrieved from: https://nacto.org/publication/urban-street-stormwater-guide/stormwater-elements/bioretention-design-considerations/inlet-design/</ref> |