Addressing climate change in planning and project documents

We are committed to building and maintaining a resilient transportation system. We incorporate climate change considerations into our planning and project evaluations. Find our policies and procedures below, as well as links to reports we have authored and additional references.

During planning

Guidance for considering impacts of climate change in WSDOT plans (PDF 606KB) – Refer to this document for direction on considering climate change impacts during the transportation planning process.

For projects

Follow the Guidance for project-level climate change evaluation (PDF 1.6MB) to address the effects of climate change on your project and document those considerations in the project’s environmental document. For information applicable to your project, refer to the following information sources:

  • Locations of climate change threats on the state transportation network according to WSDOT’s 2011 Statewide Climate Vulnerability Assessment is available in two locations:
    • WSDOT staff can access the layer through the internal GIS workbench in the Environmental section, under Climate.
    • Analysts outside WSDOT can find this layer in the Community planning portal webpage.
  • The University of Washington’s Climate Impacts Group develops state-specific anticipated climate change information. See their Climate impacts in brief webpage for a summary of anticipated climate changes in the Washington.

Evaluating greenhouse gases

Information on completing project level greenhouse gas evaluations is available on our Air quality, greenhouse gas and energy webpage.


For information on addressing climate resilience in hydraulics work, contact the WSDOT headquarters Hydraulics webpage.

14 fish passage projects were completed in 2020

improving access to 54.2 miles of upstream habitat.

11,959 incidents responded to

by WSDOT’s incident Response teams during second quarter of 2021, 15% more than same quarter in 2020.

41 Pre-existing Funds Projects Advertised

during the eighth quarter of the 2019-2021 biennium.