U. S. Army Corps of Engineers Historic Image Library
U. S. Army Corps of Engineers history
U. S. Bureau of Reclamation Projects
U. S. Department of Transportation
U. S. Navy Seabee Museum, Gulfport, MS
U. S. Navy Seabee Museum, Port Hueneme
U. S. Patent searchable database
University of California Davis F. Hal Higgins Papers
University of Connecticut Yale & Towne Papers
University of Louisville Special Collections and Archives
University of Winnipeg Western Canada Pictorial Index
Utah Construction Company Archives at Webber State College
Utah History Research Center City Engineers Photograph Collection
(c) Historical Construction Equipment Association 2013-2024
16623 Liberty Hi Road
Bowling Green, Ohio 43402
419-352-5616 - Fax 419-352-6086
Equipment, archives and museum inquiries tberry@hcea.net
All other inquiries info@hcea.net