Marion Street closure between Post Avenue and Western Avenue for water main replacement

Seattle Public Utilities

Seattle Public Utilities (SPU) is replacing a 20-inch water main along Western Avenue. Construction is taking place between Yesler Way and Spring Street.

Marion Street will be closed to through traffic between Post Avenue and Western Avenue from Saturday, October 10 at 6:00 a.m. to Monday, October 12 at 5:00 a.m. Work will occur 24 hours per day over the weekend. Local access will be provided. Detours are available eastbound at Spring Street and westbound at Yesler Way. Traffic may be stopped or detoured intermittently to accommodate the work.

Visit the project website for more information about the Western Avenue Emergency Water Main Replacement Project.

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SR 520 floating bridge to undergo monthly maintenance testing early Thursday morning

Washington State Department of Transportation

Drivers who plan to use the State Route 520 floating bridge to cross Lake Washington may encounter delays early Thursday morning.

The bridge will temporarily close to drivers for up to 30 minutes at a time from 1:30 to 5 a.m. Thursday, Oct. 8, while Washington State Department of Transportation bridge maintenance crews open and close the drawspan for testing. The monthly work is to ensure the drawspan operates properly.

Electronic message signs on highways leading to the bridge will advise drivers of the delays. Drivers can choose an alternate route to cross or go around Lake Washington, such as Interstates 90 and 405 or State Route 522. Traffic conditions on the bridge can be monitored on our Seattle traffic page.


Northbound I-5 off-ramp to Mercer Street to close overnight Friday

Washington State Department of Transportation

Drivers who use the northbound Interstate 5 off-ramp to Mercer Street should plan ahead for an overnight closure tonight, Sept. 25, through Saturday morning, Sept. 26.

Washington State Department of Transportation maintenance crews will close the ramp from 11:59 p.m. to 5 a.m. for sign installation work. Drivers will follow a signed detour to the Northeast 50th Street off-ramp, and then take the on-ramp to southbound I-5 to get to the southbound I-5 Mercer Street off-ramp.

In the Seattle area, drivers can get real-time traffic information on their phone with the WSDOT traffic app, by tracking the WSDOT traffic Twitter feed, and get advanced information from the What’s Happening Now page.


Reminder: Plan for heavy traffic today during visit of Chinese delegation

Today will be a busy day for traffic as the Chinese delegation travels throughout Seattle to Everett, Redmond, and Tacoma. Plan ahead for congestion and significant delays.

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Lane Restrictions on Broadway September 19 – 20

Sound Transit

On Saturday morning, September 19, Sound Transit crews will remove the traffic barrier on the east side of Broadway and shift traffic between E. Howell Street and E. Denny Way into the center lane on Broadway. King County Metro crews will also be on site to realign the overhead trolley lines. Broadway will reopen late Sunday evening, September 20, with two lanes of traffic open in each direction.

What to expect: 

      • Work hours are from 4:30 a.m. Saturday, September 19 through 8:00 p.m. Sunday, September 20
      • While the work is underway, Broadway will be reduced to a single lane in each direction between E. Howell Street and E. John Street.
      • Pedestrian access will be maintained along the west side of Broadway throughout the closure
      • A police officer and flaggers will be stationed at the intersection of E. Denny Way and Broadway to help direct traffic
      • Intermittent noise as crews work to adjust the overhead trolley wires

Map of restrictions: click to enhance.

Looking ahead:

Sidewalk improvements along the west side of Broadway will begin in the next few weeks. Pedestrians should look for signage and obey all detours. Access to businesses will be maintained at all times.