Grand Coulee Dam (Popularity: )
http://users.owt.com/chubbard/gcdam/ The dam on the Columbia river is the largest concrete structure in the United States. Charles Hubbard provides history, photographs and bibliography.
United States Society on Dams (Popularity: )
http://www.ussdams.org/ Professional organization advancing the technology of dam engineering and safety; fostering socially and environmentally responsible water resources projects; and promoting awareness of the benefits of dams. Previously known as United ...