open-graded

WA-RD 445.1
Authors: 
Keith Anderson.
Originator: 
Washington (State). Dept. of Transportation. Planning and Programming Service Center; Washington (State). Dept. of Transportation. Research Office.
Publication Date: 
Wednesday, October 1, 1997
WA-RD 347.1
Authors: 
John Livingston, Keith Anderson.
Originator: 
Washington (State). Dept. of Transportation. Materials Laboratory.
Publication Date: 
Friday, April 1, 1994
WA-RD 131.1
Authors: 
Keithh W. Anderson.
Originator: 
Washington (State). Dept. of Transportation.
Publication Date: 
Monday, August 31, 1987