SR 522

Route ID
522

I-405 and SR 522 closures in Bothell begin Feb. 20 to remove ramps and open space for I-405 expansion

Weekend closures part of Puget Sound’s high-impact construction in 2026

BOTHELL – A visible shift is about to take place at the Interstate 405/State Route 522 Interchange in Bothell. Beginning Feb. 20, crews will start removing large flyover ramps that once carried northbound I-405 traffic to SR 522.

Spring project will improve safety of guardrails and barriers in King, Snohomish and Whatcom counties

Evening work planned at different sites from March through June

SHORELINE – A project to update and improve the safety of 24 guardrails and barriers across King, Snohomish and Whatcom counties begins mid-March, adding energy-absorbing features to reduce the impacts of crashes.

1,557 work zone-related crashes

were recorded on state highways in 2025.

Phone down, eyes up.

Pay attention – both to workers directing you and to surrounding traffic.

Stay calm

Expect delays, leave early or take an alternate route if possible; no appointment is worth risking someone’s life.