Southbound I-405 closures this weekend in Renton

By Drew Dotson • November 6, 2025 3:37 pm
The I-405/Renton to Bellevue Widening and Express Toll Lanes Project will cause a closure of southbound lanes this weekend. (Photo provided by WSDOT)
The I-405/Renton to Bellevue Widening and Express Toll Lanes Project will cause a closure of southbound lanes this weekend. (Photo provided by WSDOT)

A full closure of I-405 southbound near Renton is planned again this weekend.

Southbound I-405 in Renton will be closed from Coal Creek Parkway SE to N. Southport Drive from 11:59 p.m. Friday, Nov. 7, to 4 a.m. Monday, Nov. 10. A signed detour route will be in place.

The following ramps will be closed:

• Southbound I-405 on-ramp from Sunset Boulevard N.

• Southbound I-405 on-ramp from SR 169 / SR 900

• Southbound I-405 off-ramp to SR 515 / Talbot Road S. (Exit 3)

• Southbound I-405 off-ramp to southbound SR 167/Auburn/Rainier Avenue S.

• Southbound I-405 direct connector ramp to SR 167

WSDOT notes that work is dependent on good weather and may be rescheduled. Schedule updates will be available on the project webpages, WSDOT’s Travel Center map, the WSDOT mobile app and by signing up for King County email updates.

The closure is due to the I-405/Renton to Bellevue Widening and Express Toll Lanes project, which will add new capacity between SR 167 in Renton and Northeast Sixth Street in Bellevue. One new lane will be added in each direction and combine the existing HOV lane with the new lane to create a dual ETL system.