Highway signs

Learn about signs on state highways, such as advertising signs and business logos, political signs, and memorial signs. You can also find out how to join or support our Adopt-a-Highway roadside clean-up program, and about our sign shop if you are from a government agency or department.

Adopt-a-Highway

The Adopt-a-Highway program is a roadside clean-up program that promotes pride and local ownership in Washington's highways. Sponsors can also have their logo posted at their sponsorship area.

Advertising & services signs on highways

Want to advertise on or along the state highway system, or get your business logo on one of our blue services signs? Here's what you need to know.

Get a roadside memorial sign

Learn how to honor your loved ones safely while also providing messaging to encourage safe driving.

Political signs on highways

Learn about the rules and restrictions for placing campaign signs on or near state highway right-of-way.

Sign shop

Learn about the WSDOT Central Sign Shop, and how your government agency or department may be able to use their services.

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Learn more about work zone safety

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.