Automated Speed-Enforcement Cameras Start Monday at Snoqualmie Pass

SNOQUALMIE PASS – An effort to slow driver and improve safety on Interstate 90 over Snoqualmie Pass begins Monday, Sept. 17.

The Washington State Department of Transportation reminds travelers passing through the five-mile-long work zone across I-90 Snoqualmie Pass they will see signs warning “Speed limit photo enforced.”

In the enforcement areas, a small sport utility vehicle parked near the highway will monitor speeds both eastbound and westbound and a camera will capture the rear license plates of vehicles speeding through active work zones. The Washington State Patrol then matches the license plate with the Department of Licensing’s database and issues a $137 fine to the registered owner.

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Washington State Patrol troopers will also continue traditional speed enforcement in the work zone. The fine for a speeding citation issued by a police officer can exceed $400.

More information, as well as a question-and-answer section and public feedback form, are available at