State Route 24 bridge maintenance will cause slowdowns on Sept. 2-3 near Othello, with alternating one-lane traffic and reduced speeds. I-405 closures begin Monday, Aug. 24, including nightly ramp closures and a bridge project on SR 20.
The Marblemount Bridge on SR 20 will close nightly from 8 p.m. to 4 a.m. through Sept. 4, except weekends. I-405 ramps and lanes will close nightly through Aug. 28, with additional closures starting Aug. 28 through Aug. 31. WSDOT advises drivers to expect delays and use detours where provided.