Surface water or stormwater runs through corrugated overflow pipe, low angle

surface water stormwater corrugated environmental running water drainage pipe floodwater overflow rainwater drainage solution pipe low angle flooding drainage system drain pipe storm drain climate change water flow drainage runoff sewer sewage global warming fluid motion flowing light at the end of the tunnel water running discolored contaminated drain outlet storm flood opening rain manmade flush liquid torrent static shot construction pipeline environment management precious resource