UPDATE: All lanes are now open, and backups have cleared, WSDOT’s traffic systems show.
INITIAL POST: A collision on northbound Interstate 5 by the Puyallup River Bridge is causing a 5-mile backup, according to the Washington State Department of Transportation.
The left lane is blocked, according to WSDOT. Emergency responders are at the scene.
No further details were immediately available. Check back for updates.