Cultural resources & archaeology

Follow the procedures on this page to address effects on historic and archeological cultural resources.

Federal and state laws mandate that all projects be evaluated for their effects on cultural resources.

Determine the type of review needed

If your project:

The CRS will define the project’s Area of Potential Effect (APE), initiate consultation with interested and affected parties, and identify resources in the project area.

Historic bridges

Check the inventory of historic state highways and bridges in Washington state to see if there are any bridges recommended, nominated, determined eligible or listed on the National Register of Historic Places (NRHP) in the project area.

If your project affects a federal interstate highway bridge included in one or more of the following lists, maintained by the FHWA, your CRS must include the bridge in the Section 106 evaluation: 

Contract consultant services

Consultant scopes of work (DOCX 49KB)

Slow down – lives are on the line.

Excessive speed was a top cause of work zone collisions in 2024.

Phone down, eyes up.

Work zones need our undivided attention.

It's in EVERYONE’S best interest.

96% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.