there is a river running under the road where cars drive. it has a dam with a gate to regulate the level of flood water by means o

waterway water river bridge canal reflection transport reservoir tree vehicle pond channel walkway track lake boat plant there running under road where cars drive dam gate regulate level flood means worm gears it#39aph39#s sunny sky blue clouds sky clouds bridge car drive catchment causeway concrete dam wall control creek drain water engineering flood floodgate floodgates flow flowing level valve gates grass hydraulic engineering structure hydro industrial industry irrigation canal melioration metal fencing overflow partition regulation river banks road rural rurally screws spillway sunny technology gears mechanisms