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Last updated: September 3
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: Sept. 8 from 10 p.m. to 5 a.m. Coal Creek Parkway near Factorial Boulevard will have alternating lane closures in each direction for water line trenching.
- NEW: Sept. 9 & 10 from 7 p.m. – 5 a.m. full road closure on 106th Ave NE from NE 8th Ave and NE 4th Street for channelization.
- UPDATED: Bridge Resurfacing Schedule
- 6 p.m.- 6 a.m. on Sept 9 and 10; 120th Avenue NE just north of NE Spring Boulevard will be reduced to one lane in each direction.
- 8 p.m. Sept 11 – 6 p.m. Sept. 12: NE 12th Street from NE Spring Boulevard to 124th Avenue NE.
- Night work: 8 p.m. – 5 a.m. on Sept. 14 and 15: Lakemont Boulevard SE just south of I-90
- NEW: Sept 13-14 (eastbound) & 15-18 (westbound) – NE 8th Street will be closed between Bellevue Way and 105th Ave NE for sky bridge cleaning.
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: TBD
- Lake Hills Boulevard: The temporary closure of Lake Hills Boulevard between 151st Avenue SE and 154th Avenue SE has been extended through Oct. 1 due to unexpected construction challenges that developed after construction started. Temporary signals and a detour will continue to be in place. The Lake to Lake trail will continue to detour to 151st Ave SE around the construction zone with detour signs in place. Project details.
- Mountains to Sound Greenway Phase 3: SE 36th Street reduced to single-lane, alternating traffic managed by a temporary signal between 142nd Avenue NE - 146th Avenue NE. The temporary signal will be in place 24/7 for approximately one year. 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 lane closures from now through the end of August to add buffered bike lanes. City of Redmond Project.
- Main Street between 108th Avenue NE – 112th Avenue NE: The curb-side lane of westbound Main Street near 110th Avenue SE is closed between the hours of 8:30 a.m. – 3:00 p.m., Monday-Friday until further notice. Access for people walking and rolling and access to businesses will be maintained. More information is on the project webpage.
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.
- NEW: Aug 26 – Sept 3: Grinding and paving at the following locations
- 116th Ave SE - Between SE 58th St and SE 52nd St
- 116th Pl SE - Between SE 58th St and SE 52nd St
- 117th Ave SE - Between SE 58th St and SE 52nd St
- 118th Ave SE - Between SE 58th St and SE 54th St
- SE 56th St - Between 116th Ave SE and 119th Ave SE
- SE 58th St - Between 116th Ave SE and 117th Ave SE
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: Sept. 8-11 from 10 p.m. – 5 a.m. westbound Coal Creek Parkway SE will have a double lane closure under I-405 for retaining wall sloping and concrete pour.
- NEW: Sept. 18-21: Northbound I-405 will close from N Southport Drive/NE Sunset Boulevard to Coal Creek Parkway SE from 11:30 p.m. Friday, Sept. 18 to 4 a.m. Monday, Sept. 21. Crews will close ramps and lanes starting as early as 10 p.m.
- North Southport Drive on-ramp
- North 30th Street on-/off-ramps (Exit 6)
- NE 44th Street on-/off-ramps (Exit 7)
- 112th Avenue SE on-/off-ramps (Exit 9)
- Northbound I-405 off-ramp to Coal Creek Parkway SE (Exit 10)
- The Coal Creek Parkway SE on-ramp to northbound I-405 will remain open.
- NEXT: Sept. 25-28: Southbound I-405 closed from Coal Creek Parkway to Southport Dr.
- I-405 and NE 85th Street Interchange Project: More information on project webpage.
- I-405 crack sealing and pavement repair:
- The following closures are planned from 9 p.m. to 5 a.m. the next morning unless noted.
- Thursday, Sept. 3
- Two right lanes of southbound I-405 between NE 124th Street/Totem Lake Mall and NE 145th Street.
- Two right lanes of southbound I-405 between NE 14th Street and SR 520.
- The westbound SR 520 off-ramp to southbound I-405.
- The southbound I-405 off-ramp to NE 124th Street.
- Thursday, Sept. 3
- The following closures are planned from 9 p.m. to 5 a.m. the next morning unless noted.
- I-90 Projects and Maintenance:
- Sunset Creek - Fish Passage: More information on project webpage.
- SE Eastgate Way will experience single-lane closures between Richards Road and 139th Avenue SE from 6 a.m. to 6 p.m., Monday – Saturday through the summer.
- Lewis, W. Village Park & Schneider Creeks - Fish Passage: More info on project webpage.
- I-90 Paving: Overnight eastbound I-90 lane and ramp closures in Bellevue. The following closures are planned from as early as 9 p.m. to 5 a.m. the next morning:
- NEW: Sept. 8-11: The following closures are planned from 9 p.m. to 5 a.m. nightly Tuesday, Sept. 8, through Friday morning, Sept. 11:
- 142nd Place Southeast on-ramp to eastbound I-90
- Eastbound I-90 off-ramps to 148th and 150th avenues southeast
- The left lane of eastbound I-90 between Bellevue Way Southeast and 150th Avenue Southeast
- This work requires dry weather and may need to be rescheduled if it rains.
- NEW: Sept. 8-11: The following closures are planned from 9 p.m. to 5 a.m. nightly Tuesday, Sept. 8, through Friday morning, Sept. 11:
- Sunset Creek - Fish Passage: More information on project webpage.
King County
- Eastrail: More information on project webpage.
- UPDATE: Sept. 3-5, 8-10 &14-17 from 9 p.m. to 5 a.m. - Full closure of SE 8th just east of I405 to west of Fire Station 7 (121st Ave SE). A signed detour route will be in place.
- 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.
- 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.
- 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.
- King County Metro is expanding their services on August 29:
- New Route 215 will provide an all-week connection between North Bend, Snoqualmie, Issaquah and Mercer Island Station.
- New routes 220 and 270 will replace Route 271 to improve speed and reliability between Eastgate, downtown Bellevue and the University District.
- Revised routes 111, 218 and 269 will run more frequently and connect riders to the 2 Line at South Bellevue or Mercer Island stations.
- Routes 111 (between Renton and South Bellevue Station) and 269 (between Sammamish and Mercer Island Station) will expand to all-day, all-week service, with earlier morning trips, later evening service and more frequent buses.
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: