Definition - What does Catch Basin mean?
A catch basin is a device or receptacle at the entrance of a sewer designed to prevent obstructive material from entering and blocking the sewer. A catch basin can also be described as a buried diversion device acting as a reservoir that diverts offsite/overland water flows in a sewer system.
Trenchlesspedia explains Catch Basin
Catch basins -- the grated "storm drains" seen on the side of roadways and in other locations -- may be installed under state, county or other municipal construction projects. Catch basins can also be installed in areas of private lands or roads to prevent precipitation events from covering the lands or roadways with water. These reservoirs catch drainage water or storm runoff to prevent flooding.