bridge substructure

WA-RD 684.3
Authors: 
Laila Cohagen, Jason B.K. Pang, Marc O. Eberhard, John F. Stanton.
Originator: 
Transportation Northwest Regional Center X (TransNow), Washington State Transportation Center (TRAC)
Publication Date: 
Thursday, October 16, 2008
WA-RD 104.1
Authors: 
Ed Henley.
Originator: 
Washington (State). Dept. of Transportation.
Publication Date: 
Thursday, January 1, 1987