RENTON, Wash. — Low temperatures with the possibility of widespread ice and isolated snow showers caused slick and dangerous road conditions across Western Washington during Tuesday’s morning commute.
Washington State Department of Transportation - North warned drivers to watch for compact snow, wind, and icy conditions. Drivers were reminded to plan for extra travel time, delay their travel if possible, pack some warm layers, fully clear their windows of ice and snow, take it slow, and don’t brake hard or crowd snowplows. Also, coffee.
Look out for compact snow, wind and icy conditions this morning, 2/4. ❄️
— WSDOT North (@wsdot_north) February 4, 2025
- Plan extra travel time for a challenging commute
- Delay travels if possible
- Pack warm layers
- Fully clear windows of ice & snow
- Take it slow
- No hard braking
- Don’t crowd the plows
- Coffee ☕️ pic.twitter.com/u3fDMLfabd
Just after 4 a.m., a semi-truck rollover caused a fire that blocked all lanes on I-405 northbound at SR 169 in Renton.
Law enforcement, fire crews, and the Incident Response Team responded to the collision.
Traffic trickled by using the SR 169 off and on-ramps. By 6 a.m., the traffic backup stretched about 2 miles to SR 167, with no estimated time for lanes to reopen. Drivers were told to continue to expect delays in the area and use alternate routes.
UPDATE 4:43: Law enforcement, fire and IRT are on scene of the crash on NB I-405 at SR 169 in @CityofRenton. All NB lanes remain closed.
— WSDOT Traffic (@wsdot_traffic) February 4, 2025
Traffic is trickling by using the SR 169 off- and on-ramps, but no ETA when this will clear. Please use alternate routes. https://t.co/7vfrYManoL pic.twitter.com/iG4v5QxPYy
Trooper Rick Johnson with the Washington State Patrol added that the collision was a semi-truck / car minor injury collision.
Traffic was diverted off the exit to SR 169. Tow trucks were on the way around 5 a.m., but Trooper Johnson warned that this collision would take a while to clean up, and commuters should use alternate routes.
#ClosureAlert NB 405 is fully closed at Sunset due to a semi / car minor injury collision. Traffic being diverted off the exit to SR 169. Tow trucks on the way but this will take a while to clean up. No ETA for clearing at this point. Use alternate routes.
— Trooper Rick Johnson (@wspd2pio) February 4, 2025
Just after 6 a.m., another collision on northbound I-405 prompted a response from fire crews, the Washington State Patrol, and the Incident Responmse team.
By 6:35 a.m., the collision had cleared, but drivers were told to expect continued delays as traffic cleared through the area.
UPDATE: A collision on NB I-405 at NE 44th St (MP 7) in Renton is partially blocking the ramp and blocking the right general purpose lane. Fire, State Patrol and Incident Response are on scene.
— WSDOT Traffic (@wsdot_traffic) February 4, 2025
Expect delays in the area. https://t.co/pDHwhUrnJN pic.twitter.com/9IFt0FLnR1
Around 6:45 a.m., the Washington State Department of Transportation shared another collision on I-405 in Bellevue. The two left lanes on NB I-405 at SE 8th Street were blocked for the crash. Incident Response, State Patrol, and fire crews responded.
By 7 a.m., the collision had cleared.
For the most recent traffic updates, visit WSDOT Traffic.
The 2 left lanes on NB I-405 at SE 8th St in Bellevue are blocked for a collision.
— WSDOT Traffic (@wsdot_traffic) February 4, 2025
Incident Response, State Patrol and Fire are at the scene. Expect delays in the area. https://t.co/XQYaBUVaPQ pic.twitter.com/SkYpteXbkX
©2025 Cox Media Group
