U.S. Army Corps of Engineers, Baltimore District, biologists conduct water turbidity testing while local contractors perform construction modifications on the District’s DC Drift field office dock’s alongside the Anacostia River in the District of Columbia, Jan. 13, 2022. The District’s DC Drift field office manages a portion of the river’s debris removal efforts, spanning 27-miles long with an area of approximately 16 square miles. USACE boat operators conduct routine debris patrols and respond to debris calls from the U.S. Coast Guard, U.S. Navy, boat and marina operators, and private citizens. (Courtesy photo)