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City of Bellevue, WA Transportation
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    Traffic Advisories

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    Last updated: Aug. 12

    The following traffic advisories reflect current conditions as they are known. The listings below reflect construction work that can affect travel on city streets, sidewalks and trails (note: excludes individual lane closures or lane and sidewalk closures associated with development projects). Expect traffic delays or use an alternate route, if possible. Please obey construction signs and flaggers. Construction schedules are subject to change and often do.

    This page is typically updated each Thursday. New information is noted by the word "New" and "Updated" in each category. To receive updates via text or email, select the "subscribe" button. 

     

    Click on the different-colored shapes in the map above for more information. Move or enlarge the map using your cursor.

      Rock ‘n’ Roll Washington running event street closures – Sept. 4

      Race organizers have outlined the various road closures and detours that will be required to keep runners and spectators safe. The half marathon starts at 6:30 a.m. Sunday, Sept. 4, road closures begin at 5:45 a.m. (except the start and finish lines areas, which close at 2 a.m.) and should conclude by noon.

      • Road closures list. For any questions regarding closures, contact community.cgi@ironman.com.
      • Half marathon course map.

      To find out about alternatives to driving, check Choose Your Way Bellevue, Metro Transit and Sound Transit. Prices vary by location.

      Current construction impacts 

      • NEW -- Radar Signs and Flashing Beacon Upgrades - 116th Avenue SE and SE 65th Place: Intermittent northbound lane closures Aug. 15-16, 7 a.m.-4 p.m. to install new radar sign. Flaggers will assist travelers through work zone.

        Ongoing construction impacts

        • West Lake Sammamish Parkway Phase 2: Two-way traffic control between NE 2nd Pl and Northup Wy, and NE 2nd Pl and 174th Pl NE through the end of August. Work hours, Monday-Friday, 7 a.m.-5 p.m.
        • 108th Avenue NE between NE 4th and 8th sts: Full road closure Aug. 13-14, 20-21 and 27-28, 9 a.m.-6 p.m. for construction. Building garage access maintained. Pedestrian access maintained on the east side of 108th Ave NE. Cyclists follow vehicular detour or pedestrian path. Police officers will assist travelers through work zone.
        • 124th Avenue NE between NE Spring Boulevard and NE 12th Street: Lane closures and lane shifts continue through the end of August for franchise utility installation. Delays are expected, please plan ahead. Flaggers and police officers will assist motorists and pedestrians through the work zone. Please slow down for worker and pedestrian safety. More information on project webpage.
        • SE 46th Way between 150th Place SE and 164th Avenue SE: Intermittent one-lane closures from May to September for installation of new ADA compliant ramps. Work hours, Monday-Friday, 7 a.m.-5 p.m. Flaggers will assist travelers through work zone. Temporary sidewalk detours will be in effect while ramps are under construction.
        • Multiple intersections on Forest Drive between Somerset Drive and 152nd Avenue SE: Traffic shifts and intermittent one-lane closures, May to August, Monday-Friday, 7 a.m.-4 p.m. Installation of new flashing beacons, signage, ramps, crosswalk (152nd Ave SE only), with paving in late summer. Pedestrian access maintained.
        • Mountains to Sound Greenway Trail – SE 36th Street from 132nd Avenue SE to 142nd Place SE: The trail is now open; however, expect intermittent lane closures of the trail over the next few months to complete the remaining work. More information on project webpage.
        • Pikes Peak Reservoir Replacement – 122XX-123XX block of NE 39th Street: Expect intermittent lane closures through September 2022 for construction of a new water reservoir and underground utilities. Work hours, Monday-Friday, 7:30 a.m.-4:30 p.m. Bridle Trails Park access and trails will be maintained during construction. More information on project webpage.

        Pavement Preservation Program

        Paving season is typically from April to October. Flaggers will be onsite for traffic control and pedestrian access maintained unless otherwise indicated. More information about the paving program, including weekly updates on the program webpage.

        East Link Light Rail construction

        Visit Sound Transit's East Link webpage to subscribe to receive construction updates. 

        • SR 520 between NE 40th Street and 148th Avenue NE: Sound Transit continues to install a pair of pedestrian bridges over the roadway. The work is part of Sound Transit’s Downtown Redmond Light Rail extension. Several overnight SR 520 road and ramp closures are planned. The work includes the following:
          • Aug. 12-13: The NE 40th St on-ramp to westbound SR 520 will close 11 p.m.-5 a.m.
          • Aug. 15-16: The NE 40th St on-ramp to westbound SR 520 will close 11 p.m.-5 a.m.
          • Aug. 16-20: The NE 40th St on-ream from westbound SR 520 will close nightly 10 p.m.-5 a.m.

        Other agency projects

        • Washington State Department of Transportation: I-90 - Eastgate to SR 900 - Corridor Improvements: More information on project webpage.
        • Washington State Department of Transportation: Renton to Bellevue I-405 Widening and Express Toll Lane Project: More information on project webpage.
          • NEW -- Southbound I-405 between SE 8th and NE 4th sts: I-405 southbound will be closed overnight Aug. 16-18, 11 p.m.-4:30 a.m. Southbound traffic will be detoured onto 112th Ave NE and 116th Ave NE. These nighttime closures will allow WSDOT to place girders for the west side of the new Main Street bridge over I-405. Detour map.
          • Main Street between 112th and 116th avs NE: Main St will close for up to 5 months while crews demolish the existing bridge then build a new bridge. Signs will direct travelers to nearby detours. NE 4th St will operate as the planned detour route. Travelers should expect increased congestion in the area. Detour map.
        • Washington State Department of Transportation: SR 520 Bridge Replacement and HOV Program: More information on project webpage.
          • The SR 520 bridge over Lake Washington will be closed in both directions between I-5 and the Eastside from 11 p.m., Friday, Aug. 26 to 5 a.m., Monday, Aug. 29 to install girders for the future Montlake lid and realign the highway’s lanes during this closure.
        • Washington State Department of Transportation: SR 520 and 148th Avenue NE at Overlake Village area in Redmond: WSDOT has shifted lanes on 148th Ave NE west to excavate a tunnel on the east side of the road. By fall of 2023, access to nearby businesses, neighborhoods and the new light rail station will improve with the addition of a new access ramp. Plan additional travel time due to a lowered speed limit of 30 mph and temporary signals. More information on project webpage.
        • King County's Valley Creek Sewer Pipe Rehabilitation: More information on project webpage. 
        • King County's Eastrail: Washington State Department of Transportation, in partnership with King County Parks, is overseeing construction of 2.5 miles of new paved Eastrail in Renton and Bellevue. More information on WSDOT's project webpage. 
          • NEW -- Southbound I-405 between SE 8th Street and 112th Avenue SE: I-405 southbound will be closed overnight from 11 p.m., Monday, Aug. 15 to 4 a.m., Tuesday, Aug. 16. Southbound traffic will be detoured along 112th Ave SE to Bellevue Way SE. From Bellevue Way, the detour will continue to eastbound I-90 before joining southbound I-405. This nighttime closure will allow WSDOT to set girders for a new pedestrian trail bridge for Eastrail. Detour map.
        • King County North Mercer Island/Enatai Sewer Upgrade Project: Crews will locate utilities in north Mercer Island and southwest Bellevue to prepare for major construction activities beginning spring 2022 and extending until 2025. Sign up for Enatai project area email and text updates from King County on project webpage.
          • Sweyolocken Boat Launch: Road closed from Bellevue Wy SE to the Sweyolocken Boat Launch. The area south of the Sweyolocken Pump Station will be closed as well. The I-90 Trail will be closed to the east and southwest of the pump station during construction. Detours for trail traffic will be alongside streets near the South Bellevue Park and Ride to the I-90 Bike Trail near 108th Ave SE. 
        • King County Coal Creek Sewer Upgrade Project: King County Wastewater Treatment Division is upgrading its regional sewer line that serves Bellevue and Newcastle. More information on project website.
        • King County Lake Hills and NW Lake Sammamish Sewer Upgrade Project: More information on project webpage.
        • King County Sunset and Heathfield Pump Stations and Force Main Upgrade Project: More information on project website.

        Highway traffic information

        Three major highways run through Bellevue. At any given time the state Department of Transportation may be working on projects that can affect traffic in Bellevue. For the most up-to-date information on construction activity, visit WSDOT's web pages:

        • I-405 Renton to Bellevue Widening and Express Toll Lanes Project
        • Interstate 90 (I-90) project information 
        • State Route 520 (SR 520) project information
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