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WA-RD 506.1
Authors: 
Jennifer Nee, John Ishimaru, Mark E. Hallenbeck.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Wednesday, April 10, 2002
WA-RD 507.1
Authors: 
Barbara Nightingale, Charles A. Simenstad.
Originator: 
Washington State Transportation Center (TRAC); University of Washington. School of Aquatic and Fishery Sciences. Wetland Ecosystem Team.
Publication Date: 
Sunday, July 1, 2001
WA-RD 508.1
Authors: 
Barbara Nightingale, Charles Simenstad.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Tuesday, May 1, 2001
WA-RD 508.2
Authors: 
Barbara Nightingale, Charles Simenstad.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Friday, June 1, 2001
WA-RD 510.1
Authors: 
Jennifer Nee, Mark E. Hallenbeck.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Friday, June 1, 2001
WA-RD 506.2
Authors: 
Jennifer Nee, John Ishimaru, Mark Hallenbeck.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Friday, June 1, 2001
WA-RD 511.1
Authors: 
Gudmundur F. Ulfarsson, Venkataraman N. Shankar, Patrick Vu, Fred L. Mannering, Linda N. Boyle, Mark M. Morse.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Saturday, December 1, 2001
WA-RD 511.2
Authors: 
Gudmundur F. Ulfarsson, Venkataraman N. Shankar, Patarick Vu, Fred L. Mannering, Linda N. Boyle, Mark M. Morse.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Friday, February 1, 2002
WA-RD 512.3
Authors: 
William R. Bidlake, Emily L. Inkpen, Lonna M. Frans.
Originator: 
Washington (State). Dept. of Transportation.
Publication Date: 
Saturday, June 1, 2002
WA-RD 512.2
Authors: 
Kenneth C. Ames, Emily L. Inkpen, Lonna M. Frans, William R. Bidlake.
Originator: 
Geological Survey (U.S.)
Publication Date: 
Saturday, September 1, 2001

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