Use this information to analyze and document impacts from project noise and to comply with federal, state, and local noise requirements.

Determine if your project will require a noise analysis

Follow the ERS-ECS for noise (PDF 154KB) guidance to document impacts for CE projects.

Contact Jim Laughlin,, to help you scope the noise analysis needs for your project.

Slow down – lives are on the line.

In 2022, speeding continued to be a top reason for work zone crashes.

Even one life lost is too many.

Each year about 670 people are killed nationally in highway work zones. In 2022, Washington had six fatal work zone crashes on state roads.

It's in EVERYONE’S best interest.

95% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.