BELLEVUE, Wash. – Drivers should plan for delays this weekend on southbound Interstate 405 as crews continue sewer repair and slab reconstruction work.
The Washington State Department of Transportation (WSDOT) announced that paving operations are underway on SB I-405, with lane reductions in place between NE 70th Place and I-90. These restrictions will remain until 4:30 a.m. Monday.
Motorists are advised to expect backups and allow extra travel time. WSDOT crews are working around the clock in rainy conditions to complete the repairs.
Good morning! Crews are paving SB I-405 as part of this weekend’s sewer repair and slab reconstruction.
Lane reductions continue between NE 70th Pl and I-90 until 4:30 a.m. Monday. Expect backups! pic.twitter.com/kb6ecfRN5A
— WSDOT Traffic (@wsdot_traffic) September 21, 2025