Metallurgical and weld investigation, downstream lock gate
Subtitle: Columbia River, Oregon and Washington, John Day Lock and Dam
By: U.S. Army Engineer District, Walla Walla, Corps of Engineers.
Contributors: United States. Army. Corps of Engineers. Walla Walla District.
Publisher: The District
Published: 1964
Place of publication: Walla Walla, Wash
Language: eng
Number of pages: 151
Subjects: Locks (Hydraulic engineering); John Day Lock and Dam (Or. and Wash.)
Other titles: John Day downstream lock gate, metallurgical and weld investigation.
Notes: Title from cover.

"January 1964."

Spine title: John Day downstream lock gate, metallurgical and weld investigation.