- Department of Defense. Department of the Army. U.S. Army Corps of Engineers. North Pacific Division. U.S. Army Engineer District, Seattle. 6/14/1979-1997
- National Archives at Seattle
The US Army Corps of Engineers extensively photographed many of the Civil Works project and river and harbor improvement that they were involved with. The Lake Washington Ship Canal and the Hiram Chittenden Locks were built to allow passage between fresh water Lake Union and salt water Puget Sound.
- Photographic Print