guardrail

WA-RD 843.1
Authors: 
Evan Olszko, Donald A. Bender
Originator: 
Washington State University. Department of Civil and Environmental Engineering
Publication Date: 
Monday, June 29, 2015
WA-RD 516.1
Authors: 
Richard W. Glad, Richard B. Albin, Dawn M. McIntosh, David K. Olson.
Originator: 
Washington (State). Dept. of Transportation.
Publication Date: 
Friday, March 1, 2002
WA-RD 642.1
Authors: 
Omar W. Jepperson, William F. Williams, Richard B. Albin.
Originator: 
Washington (State). Dept. of Transportation. Design Office.
Publication Date: 
Monday, November 1, 2004
WA-RD 662.1
Authors: 
C. Eugene Buth, D. Lance Bullard, Jr., Wanda L. Menges.
Originator: 
Texas Transportation Institute.
Publication Date: 
Saturday, July 1, 2006
M 22-01
Originator: 
Development Division, Design Office
Publication Date: 
Friday, September 1, 1967