Design topics

Find resources to support practical decision-making during pre-design, scoping and design for your projects.

Design guidance & support

Find guidance documents, templates and checklists to support your design efforts.

Bridges & structures

Technical information, including guidelines, manuals, drawings, software and other resources for designing, inspecting, and preserving bridges and structures.

Design ADA

Find project ADA self-assessments for construction projects, ADA guidance, requirements and forms.

Engineering applications

Find technical support and guidance in engineering data systems and software applications used in the preparation of your project. From resource updates and installation guidance to downloadable versions, examples and templates.

Highway & roadside facilities

Staff and contractors can find guidance and tools on these topics.

Hydraulics & hydrology

Staff and contractors can find guidance and tools for project hydraulic design.

Traffic

Staff and contractors can find guidance and tools on these topics.

Utilities, railroads & agreements

Find guidance and expertise for coordinating services for statewide projects and initiatives involving utilities, railroads and agreements. Get the technical guidance and training on agreement development, utility policy and railroad project coordination. Find utility permits and franchise information and resources.

8,683 animals crossed the Snoqualmie Pass East Project area

as recorded by WSDOT and partners in 2020 and 2021.

46% increase in Amtrak Cascades ridership to 251,000 passengers

in 2021 compared to 172,000 in 2020.

Nine wetland and stream mitigation sites across 32.7 acres added

to our monitoring program in 2021 to help offset climate change impacts.