Washington Reports & Other Publications

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

Washington Habitat Connectivity Action Plan

Michalak, J. L., G. P. Kalisz, H. A. Morgan, S. M. DeMay, Z. Kaszta, J. Azerrad, E. Bockstiegel, A. Shirk, P. Cramer. 2025. Washington Habitat Connectivity Action Plan. Washington Department of Fish and Wildlife & Washington Department of Transportation, Olympia, WA. 214 pages.

The Washington Habitat Connectivity Action Plan (WAHCAP) builds upon Washington’s leadership in connectivity science, synthesizing decades of research to establish clear priorities for on-the-ground projects that will protect and reconnect Washington’s landscapes for wildlife. This Action Plan identifies both transportation and terrestrial landscape-connectivity priorities, ensuring that Washington’s approach to connectivity conservation is comprehensive and focused on implementation.

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.