Catch Basins, Inets & grates

From below these assets are precast concrete, poured in place concrete or built from brick. They are connected to storm sewers underground and allow excess runoff to enter the stormwater system. Catch basins often have grates that prevent debris and trash from entering the system, while inlets do not. These assets can be found in parking lots and along the edge of the pavement to remove runoff from the impervious surface. Catch basins may also have a sump that collects material without allowing it to convey downstream. Because they are the first line of defense in stormwater systems, they experience extreme wear and tear and should be maintained regularly.