Overview
The I-405/SR 167 Corridor Program currently has three major projects under construction on the I-405 corridor:
- I-405/Renton to Bellevue Widening and Express Toll Lanes Project between Renton and Bellevue
- I-405/Northeast 85th Street Interchange Project in Kirkland
- I-405/Brickyard to SR 527 Improvement Project in Bothell
Below are the most up-to-date information and resources to help you navigate impactful closures happening on the I-405 corridor.
Closures on I-405 this week
Updated Tuesday, Sept. 15: People should prepare for a closure of northbound I-405 from Renton to Bellevue this weekend. Northbound I-405 from Kirkland to Bothell will also have lane closures Saturday night.
This information is presented for planning purposes only. Construction depends on weather and other factors, so activities are subject to change.
Travelers are also advised of additional work on I-90 and SR 520 happening this week.
Other WSDOT work to be aware of: Overnight lane and ramp closures on I-405 for maintenance Sept. 14-18
Separate from our program’s work, overnight lane and ramp closures along multiple state highways in King County will take place Sept. 14-18, for crack sealing and pavement repair. The list of closures can be found in this travel advisory and the WSDOT real-time travel map.
This is part of a regional pavement repair project addressing more than 70 locations in King, Snohomish, Skagit and Whatcom counties. These roadway improvements extend the life of the roadway and improve the driving surface.
Note: The I-405/Northeast 85th Street interchange closure in Kirkland planned for Sept. 16-17 and Sept. 18-21 will be rescheduled for a later date.
Northbound I-405 closure: Renton to Bellevue
| Project | I-405/Renton to Bellevue Widening and Express Toll Lanes Project |
|---|
| Where | - All lanes of northbound I-405 from North Southport Drive in Renton to Coal Creek Parkway in Bellevue
|
|---|
| When | - 11:30 p.m. Friday, Sept. 18, to 4 a.m. Monday, Sept. 21
|
|---|
| Ramps closed | - North Southport Drive on-ramp
- North 30th Street on-/off-ramps (Exit 6)
- Northeast 44th Street on-/off-ramps (Exit 7)
- 112th Avenue Southeast on-/off-ramps (Exit 9)
- Northbound I-405 off-ramp to Coal Creek Parkway Southeast (Exit 10)
|
|---|
| Detour | Signed detour route
Travelers are advised of northbound lane reductions along the detour route on Coal Creek Parkway Southeast as part of the Coal Creek Sewer Upgrade Project. |
|---|
| Closure summary | Crews will excavate drainage crossings, complete full pavement replacements, and complete a traffic switch. |
|---|
Overnight northbound I-405 lane closures: Kirkland to Bothell
| Project | I-405/Brickyard to SR 527 Improvement Project |
|---|
| Where | - Up to three lanes of northbound I-405 from Northeast 128th Street in Kirkland to SR 522 in Bothell
|
|---|
| When | - 11 p.m. Saturday, Sept. 19, to 7 a.m. Sunday, Sept. 20
- Crews will implement a rolling slowdown between 12:01 a.m. and 3:30 a.m. Sunday, Sept. 20.
|
|---|
| Ramps closed | N/A |
|---|
| Detour | N/A |
|---|
| Closure summary | Crews will conduct a traffic shift. |
|---|
Upcoming closures on I-405
Southbound I-405 closure: Bellevue to Renton
| Project | I-405/Renton to Bellevue Widening and Express Toll Lanes Project |
|---|
| Where | - All lanes of southbound I-405 from Coal Creek Parkway in Bellevue to North Southport Drive in Renton
|
|---|
| When | - 11:30 p.m. Friday, Sept. 25, to 4 a.m. Monday, Sept. 28
|
|---|
| Ramps closed | - Coal Creek Parkway Southeast on-ramp to southbound I-405
- Lake Washington Boulevard on-/off-ramps (Exit 9)
- Northeast 44th Street on-/off-ramps (Exit 7)
- Southbound I-405 off-ramp to Northeast 30th Street (Exit 6)
|
|---|
| Detour | Signed detour route
Travelers are advised of northbound lane reductions along the detour route on Coal Creek Parkway Southeast as part of the King County Coal Creek Sewer Upgrade Project. |
|---|
| Closure summary | Crews will conduct final paving. |
|---|
I-405 ramps and Northeast 132nd Street: Kirkland
| Project | I-405/Northeast 132nd Street Interchange Project |
|---|
| Where | - I-405/Northeast 132nd Street interchange in Kirkland
- Northeast 132nd Street under I-405
|
|---|
| When | - 10 p.m. Friday, Sept. 25, to 5 a.m. Monday, Sept. 28
|
|---|
| Ramps closed | - Northbound/southbound I-405 ramps at Northeast 132nd Street
|
|---|
| Detour | Signs will be in place. |
|---|
| Closure summary | Crews will refresh striping |
|---|
Construction map
This map shows impactful closures planned for the weekend of Sept. 18-21, including other regional construction projects. For real-time conditions across the region, visit the WSDOT travel map.
Map of impactful closures the weekend of Sept. 18-21.
Recent accomplishments
Steady progress at the I-405/Northeast 85th Street interchange in Kirkland
Last weekend, crews completed electrical and curb installation and prepared for paving on Northeast 85th Street as part of the I-405/Northeast 85th Street Interchange and Inline BRT Station Project.
All-hands-on-deck on northbound I-405 in Bothell
Crews started pouring fresh concrete for the new northbound I-405 bridge deck in Bothell, as part of the I-405/Brickyard to SR 527 Improvement Project. Constructing a new northbound I-405 bridge deck at the I-405/SR 522 interchange will allow crews to add an express toll lane (ETL) in each direction and direct access ramps from SR 522 to the ETLs.
Crews poured the deck for a new section of northbound I-405 in Bothell the week of Aug. 31, 2026.
Sign up for our I-405/SR 167 newsletter which provides consistent, reliable updates on what’s happening and what to expect. The newsletter is sent to all of our project email lists so sign up for the one most relevant to you:
24-hour hotlines for construction:
- I-405/Brickyard to SR 527 Improvement Project: 425-354-3232
- I-405/Northeast 85th Street Interchange and Inline BRT Station Project: 425-224-2423
- I-405/Renton to Bellevue Widening and Express Toll Lanes Project: 425-818-0161
Contact us
We want to hear from you. Please reach out if you have questions or comments.
Email: I405SR167Program@wsdot.wa.go
Overview
The I-405/SR 167 Corridor Program currently has three major projects under construction on the I-405 corridor:
- I-405/Renton to Bellevue Widening and Express Toll Lanes Project between Renton and Bellevue
- I-405/Northeast 85th Street Interchange Project in Kirkland
- I-405/Brickyard to SR 527 Improvement Project in Bothell
Below are the most up-to-date information and resources to help you navigate impactful closures happening on the I-405 corridor.
Closures on I-405 this week
Updated Tuesday, Sept. 15: People should prepare for a closure of northbound I-405 from Renton to Bellevue this weekend. Northbound I-405 from Kirkland to Bothell will also have lane closures Saturday night.
This information is presented for planning purposes only. Construction depends on weather and other factors, so activities are subject to change.
Travelers are also advised of additional work on I-90 and SR 520 happening this week.
Other WSDOT work to be aware of: Overnight lane and ramp closures on I-405 for maintenance Sept. 14-18
Separate from our program’s work, overnight lane and ramp closures along multiple state highways in King County will take place Sept. 14-18, for crack sealing and pavement repair. The list of closures can be found in this travel advisory and the WSDOT real-time travel map.
This is part of a regional pavement repair project addressing more than 70 locations in King, Snohomish, Skagit and Whatcom counties. These roadway improvements extend the life of the roadway and improve the driving surface.
Note: The I-405/Northeast 85th Street interchange closure in Kirkland planned for Sept. 16-17 and Sept. 18-21 will be rescheduled for a later date.
Northbound I-405 closure: Renton to Bellevue
| Project | I-405/Renton to Bellevue Widening and Express Toll Lanes Project |
|---|
| Where | - All lanes of northbound I-405 from North Southport Drive in Renton to Coal Creek Parkway in Bellevue
|
|---|
| When | - 11:30 p.m. Friday, Sept. 18, to 4 a.m. Monday, Sept. 21
|
|---|
| Ramps closed | - North Southport Drive on-ramp
- North 30th Street on-/off-ramps (Exit 6)
- Northeast 44th Street on-/off-ramps (Exit 7)
- 112th Avenue Southeast on-/off-ramps (Exit 9)
- Northbound I-405 off-ramp to Coal Creek Parkway Southeast (Exit 10)
|
|---|
| Detour | Signed detour route
Travelers are advised of northbound lane reductions along the detour route on Coal Creek Parkway Southeast as part of the Coal Creek Sewer Upgrade Project. |
|---|
| Closure summary | Crews will excavate drainage crossings, complete full pavement replacements, and complete a traffic switch. |
|---|
Overnight northbound I-405 lane closures: Kirkland to Bothell
| Project | I-405/Brickyard to SR 527 Improvement Project |
|---|
| Where | - Up to three lanes of northbound I-405 from Northeast 128th Street in Kirkland to SR 522 in Bothell
|
|---|
| When | - 11 p.m. Saturday, Sept. 19, to 7 a.m. Sunday, Sept. 20
- Crews will implement a rolling slowdown between 12:01 a.m. and 3:30 a.m. Sunday, Sept. 20.
|
|---|
| Ramps closed | N/A |
|---|
| Detour | N/A |
|---|
| Closure summary | Crews will conduct a traffic shift. |
|---|
Upcoming closures on I-405
Southbound I-405 closure: Bellevue to Renton
| Project | I-405/Renton to Bellevue Widening and Express Toll Lanes Project |
|---|
| Where | - All lanes of southbound I-405 from Coal Creek Parkway in Bellevue to North Southport Drive in Renton
|
|---|
| When | - 11:30 p.m. Friday, Sept. 25, to 4 a.m. Monday, Sept. 28
|
|---|
| Ramps closed | - Coal Creek Parkway Southeast on-ramp to southbound I-405
- Lake Washington Boulevard on-/off-ramps (Exit 9)
- Northeast 44th Street on-/off-ramps (Exit 7)
- Southbound I-405 off-ramp to Northeast 30th Street (Exit 6)
|
|---|
| Detour | Signed detour route
Travelers are advised of northbound lane reductions along the detour route on Coal Creek Parkway Southeast as part of the King County Coal Creek Sewer Upgrade Project. |
|---|
| Closure summary | Crews will conduct final paving. |
|---|
I-405 ramps and Northeast 132nd Street: Kirkland
| Project | I-405/Northeast 132nd Street Interchange Project |
|---|
| Where | - I-405/Northeast 132nd Street interchange in Kirkland
- Northeast 132nd Street under I-405
|
|---|
| When | - 10 p.m. Friday, Sept. 25, to 5 a.m. Monday, Sept. 28
|
|---|
| Ramps closed | - Northbound/southbound I-405 ramps at Northeast 132nd Street
|
|---|
| Detour | Signs will be in place. |
|---|
| Closure summary | Crews will refresh striping |
|---|
Construction map
This map shows impactful closures planned for the weekend of Sept. 18-21, including other regional construction projects. For real-time conditions across the region, visit the WSDOT travel map.
Map of impactful closures the weekend of Sept. 18-21.
Recent accomplishments
Steady progress at the I-405/Northeast 85th Street interchange in Kirkland
Last weekend, crews completed electrical and curb installation and prepared for paving on Northeast 85th Street as part of the I-405/Northeast 85th Street Interchange and Inline BRT Station Project.
All-hands-on-deck on northbound I-405 in Bothell
Crews started pouring fresh concrete for the new northbound I-405 bridge deck in Bothell, as part of the I-405/Brickyard to SR 527 Improvement Project. Constructing a new northbound I-405 bridge deck at the I-405/SR 522 interchange will allow crews to add an express toll lane (ETL) in each direction and direct access ramps from SR 522 to the ETLs.
Crews poured the deck for a new section of northbound I-405 in Bothell the week of Aug. 31, 2026.
Sign up for our I-405/SR 167 newsletter which provides consistent, reliable updates on what’s happening and what to expect. The newsletter is sent to all of our project email lists so sign up for the one most relevant to you:
24-hour hotlines for construction:
- I-405/Brickyard to SR 527 Improvement Project: 425-354-3232
- I-405/Northeast 85th Street Interchange and Inline BRT Station Project: 425-224-2423
- I-405/Renton to Bellevue Widening and Express Toll Lanes Project: 425-818-0161
Contact us
We want to hear from you. Please reach out if you have questions or comments.
Email: I405SR167Program@wsdot.wa.go
