Traffic Advisories

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Last updated: October 20

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.

Current construction impacts

NEW: Oct. 24 from 6 p.m. to 6 a.m.: 110th Avenue NE closed between NE 4th Street and NE 2nd street for crane set up at Summit Building. Sidewalks also closed and some nearby streets may be limited to local access only.
NEW: Oct. 26 – Nov. 11 from 7 a.m. until 3:30 p.m. daily: 106th Place NE, south of NE 12th Street, closed to facilitate large deliveries.
NEW: Nov. 4 at 7 a.m. until Nov. 6 at 4 p.m.: Eastbound NE 12th Street closed between 106th Avenue NE and 108th Avenue NE; 106th Place NE from NE 12th Street to private alley to the south closed. Pedestrians will be detoured. Set up and dismantle of crane.
Nov. 5 night work from 11 p.m. – 5 a.m.: Eastbound curb lane of NE 8th Street from Bellevue Way to 106th Avenue NE to hang an exterior sign at Wagyu House.

Ongoing construction impacts

100th Avenue NE between NE 10th Street and NE 17th Street, except local access: 100th Avenue NE will be closed between NE 13th Street and NE 17th Street through November. One-way local access will be maintained to all driveways. More information is on the project webpage.
Beaux Arts Water Main Replacement: Crews will be working on Killarney Way and 94th Avenue NE between NE 18th Street and NE 16th Street in Clyde Hill.
UPDATED: Lake Hills Boulevard: Lake Hills Boulevard between 151st Avenue SE and 154th Avenue SE has reopened to traffic as of Oct. 1. Construction will continue in the area through the remainder of the project, scheduled to be completed February 2027. Drivers should expect delays during working hours due to daily lane closures and alternating one-way traffic. Please allow extra time when traveling through the area and follow posted signs and flaggers. The Lake to Lake Trail remains closed in the construction area, and a detour is in place. The trail is expected to open in November when Puget Sound Energy completes installation of a gas line. Project details.
Mountains to Sound Greenway Phase 3: SE 36th Street will be reduced to one westbound lane only between 142nd Street and 150th Avenue SE starting the first week of October through the end of 2027. Eastbound traffic will be detoured to SE Eastgate Way. A signed bike detour in the eastbound direction will also be in place beginning at 136th Place SE. For more information visit BellevueWA.gov/mtsgreenwaytrail.
Urban Core Bike Network Phase 1: Crews will repave 100th Ave NE/Main Street and 116th Ave NE/Main Street soon. Work will pause for 3-4 weeks and resume to install new channelization/striping and bike signals. Work is expected to primarily occur daytime work hours of 7 a.m. – 6 p.m. Monday-Friday. For more information visit BellevueWA.gov/urban-bike-network
Bel-Red Road from NE 30th Street to West Lake Sammamish Parkway will experience intermittent lane closures through October to add buffered bike lanes. City of Redmond Project.

Pavement Preservation Program

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

Work is weather dependent. Please slow down for the safety of workers and all travelers. Traffic may be reduced to one-way alternating traffic, expect delays. Work hours are Monday – Friday.

ADA upgrades scheduled Monday-Friday, 8 a.m. – 4 p.m., expect lane closures and delays:

No work scheduled

Pavement upgrades are weather dependent and scheduled Monday-Friday, 7 a.m. – 4 p.m., expect delays, single-lane closures with one-way alternating traffic; unless otherwise noted.

No work scheduled

Other agency projects

Washington State Department of Transportation:

SR 520 Bridge Replacement and HOV Program: More information on the project webpage.
- Washington State Patrol and WSDOT are partnering to boost compliance with the requirement to have three people in the vehicle to drive in the HOV lane.
I-405 Burlington Northern Bridge to Pedestrian Trail Bridge & I-90/East Fork Issaquah Creek Seismic: More information on project webpage.
- Northup Way from 116th Avenue NE to NE 33rd Place: WSDOT crews will close a single lane beginning April 5 for several months from 7 a.m.-3 p.m., Monday-Friday. The bicycle lane and sidewalk under I-405 will also be closed during working hours. Signs and flaggers will guide travelers and pedestrians through the work zone. Cyclists will merge with traffic when the bike lane is closed. Daytime lane closures are part of a project to bolster overpasses along I-405 to help them withstand an earthquake.
I-405/Renton to Bellevue Widening and Express Toll Lane Project: More information on project webpage.
- NEW: Coal Creek Parkway under I-405 will have a westbound double lane closure from Oct. 26 – Oct. 30 from 10 p.m. to 5 a.m. for retaining wall work.
- NEW: Coal Creek Parkway at Lake Washington Blvd. and 120th Avenue SE will have a westbound double lane closure from Oct. 26 – Oct. 30 from 10 p.m. to 5 a.m. for storm and pump station work.
- NEW: I-405/NE 132nd Street interchange closure in Kirkland, Oct. 19-23: The northbound and southbound I-405 on- and off-ramps at NE 132nd Street in Kirkland will close nightly from 9 p.m. Monday, Oct. 19, to 5 a.m. Friday, Oct. 23. NE 132nd Street under I-405 will also close. Signed detours will be in place. Crews will install speed cushions and adjust signage.
I-405 and NE 85th Street Interchange Project: More information on project webpage.
- NEW: The northbound and southbound I-405 on/off-ramps (Exit 18) in Kirkland will close from 9 p.m. Monday, Oct. 26 to 5 a.m. Tuesday, Oct. 27. Northeast 85th Street will also close between Sixth Street and 120th Avenue Northeast. Detours will be in place.
I-90 Projects and Maintenance:
- Sunset Creek - Fish Passage: More information on project webpage.
  - NEW: From 7 a.m. to 3 p.m. daily Mondays through Fridays Oct. 26 until Nov. 6, flaggers will alternate traffic on Southeast 36th Street between 132nd Avenue Southeast and 136th Place Southeast. Delays are possible each day through the work zone, but all driveways and businesses in the area will remain accessible.
- Lewis, W. Village Park & Schneider Creeks - Fish Passage: WSDOT’s current project along I-90 west of downtown Issaquah is building bridges on I-90, Northwest Sammamish Road and West Lake Sammamish Parkway Southeast to help migratory and native fish move up and down Lewis, Schneider and West Village Park creeks. More info on project webpage.
  - NW Sammamish Road near Lake Sammamish State Park and west of Schneider Creek will be closed beginning Oct. 5 for six weeks.
I-90 Paving: WSDOT will repave nearly two miles of eastbound Interstate 90 from 118th Avenue Southeast (MP 9.72) to 150th Avenue Southeast (MP 11.55) in Bellevue. The following overnight closures are planned from as early as 9 p.m. to 5 a.m. the next morning: None scheduled.
POSTPONED: Mercer Slough Bridge: New dates TBD, eastbound I-90 in Bellevue over the Mercer Slough (between Island Crest Way and I-405) will have lane and on/offramp closures. Follow signed detour, project website. The closures occur from 9 p.m. to 5 a.m. Sundays through Thursdays and include:
- Right lane of eastbound I-90 between Island Crest Way on Mercer Island and I-405
- East Mercer Way on-ramp to eastbound I-90
- Bellevue Way Southeast on-ramp to eastbound I-90
- Eastbound I-90 off-ramps to northbound and southbound I-405

King County

Eastrail: More information on project webpage.
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 or CoalCreekProject@kingcounty.gov
- Southbound lane closures on Coal Creek Parkway SE are permitted for weekdays, 6:00 am to 3:00 pm. A northbound lane closure near the Factoria Boulevard SE intersection is permitted for weekdays from 10:30 am to 7:30 pm.
  - During 24/7 tunneling, northbound traffic impacts will include a lane closure on Coal Creek Parkway SE near Forest Drive SE. This single lane closure will be in effect from 10:30 a.m. to 5 a.m., 7 days a week. It will not be in effect between 5 a.m. and 10:30 a.m. to help reduce morning commute impacts.
  - The Red Cedar trailhead will remain closed to all public use during this work. Other trailheads in the area such as the Cinder Mine, Red Town, Coal Creek Family YMCA, and Forest Drive trailheads are available for trail users.
North Mercer Island/Enatai Sewer Upgrade Project: Crews will locate utilities in north Mercer Island and southwest Bellevue to prepare for major construction activities. Sign up for Enatai project area email and text updates from King County on project webpage.
- As soon as Oct. 5, King County will begin to upgrade the North Mercer Island – Enatai Sewer. Work will impact the Mercer Slough Bike Trail and Enatai Beach Park. Project website.
King County Metro is expanding their services on August 29:

Sound Transit: For updates and service alerts from Sound Transit, visit soundtransit.org/ride-with-us/service-alerts. To check King County Metro routes impacted by construction, visit Metro's Service advisories.

Aug. - Feb. 2027: Bellevue Transit Center: construction crews are retrofitting the current Bellevue Transit Center Bus Depot to accommodate the Stride double-decker battery electric buses. Construction is expected to last through February 2027.

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: