SR 522 will be four lanes between the Snohomish River and US 2 in Monroe. Crews will also build four bridges for the new roadway, including a 1/3 mile bridge across the Snohomish River. These improvements will reduce congestion and the likelihood of collisions.
When SR 522 is fully closed for rock blasting work, drivers will be detoured around the closure using SR 9 and US 2.