drainage drainage reclamation channel is an outdated way to lower groundwater levels. dikes of gray stones. supplies water to irri

autumn bend car central channel concrete damage dikes dirty drainage drains dump europe fields flood flow full garbage grass gray groundwater heavy irri irrigate landscape landscaping lawn levels lower lush meander narrow nature old outdated overgrown park pond quickly rain rainy rapids reclamation reinforcements river riverbank riverbed rock roof sewage slope slopes steep stone stones straight stream supplies tire tires tube vandalism waste water waterfall way wheel