Public domain
Fort Knox. Bridge construction trucks. Soldiers of a special engineering unit attached to the armored forces prepare to lay a treadway bridge. Equipped with winches and crane members, the bridge truck they use makes short work of transporting the bridge sections and laying them on pontoons. This par
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineFort Knox. Bridge construction trucks. Soldiers of a special engineering unit attached to the armored forces prepare to lay a treadway bridge. Equipped with winches and crane members, the bridge truck. 1942-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.