 By this time, the conduit and gates had been installed in the lake's lower exit, and the upper gates were expected to be installed soon.About of the western shore of Kingman Lake between Gallinger Hospital and Benning Bridge were set aside for gardens in March 1933 to provide food for the needy.The drainage of raw sewage into Kingman Lake and the Anacostia River first became an issue in the early 1930s.