In a bipartisan effort, legislators voted unanimously for the program two years ago in reaction to worsening dangers in construction zones, which average more than 1,300 crashes per year and around 600 injuries. The count spiked to 1,495 collisions in the first 10 months of 2024, killing or seriously injuring 43 people.

Starting in late February, a work zone speed camera mounted on a trailer will rotate through active work zones across Washington.

The Colorado Department of Transportation is piloting speed enforcement cameras, beginning in construction zones. The Floyd Hill construction zone on Interstate 70 has been identified as a candidate for the first zone, according to a Jan. 15 transportation commission meeting.

Washington drivers crash in work zones more than 1,000 times a year, compelling the Legislature to unanimously approve speed cameras along state highways.