Washington Reports & Other Publications

See below for links to reports and pubs. Click on report cover image to download the report.

Permeability of existing structures for terrestrial wildlife: a passage assessment system. Final Report to Washington Department of Transportation

Kintsch, J. and P. C. Cramer. 2011. Permeability of existing structures for terrestrial wildlife: a passage assessment system. For Washington Department of Transportation, WA-RD 777.1. Olympia, Washington. 188 pages.

A Passage Assessment System (PAS) was developed to help the Washington Department of Transportation (WSDOT) evaluate existing transportation infrastructure for its ability to facilitate terrestrial wildlife movement from one side of a roadway to the other. The outcomes of this research provided mechanisms to allow transportation agencies to identify both opportunities and barriers to wildlife passage along roads.

Additional Publications