EditorialAn aerial view of the New Orleans Drainage System's Gulf Intracoastal West Closure Complex, which includes a navigable floodgate, sluice gates and an earthern levee, in Belle Chasse, La., June 10, 2015. (William Widmer/The New York Times)
EditorialModel of a Lock Gate, Model of a floodgate on a pile foundation, on a floorboard. The lock door has two doors, each consisting of a few doors that are connected to each other at an angle of ninety degrees. One door closes the lock entrance, the other r...