Interstate 90 bisects Bellevue east-west restricting access between the northern and southern sections of the city. There are only three north-south arterial connections where travelers can both cross and access the interstate. The middle crossing at 150th Ave SE and its associated intersections and ramps at Eastgate Way and SE 37th/38th Streets experience serious delays with Level of Service at and approaching LOS F. Rapid land use growth continues both north and south of I-90. Safer, more efficient access for cars, transit and freight vehicles is needed to connect jobs, housing, and retail uses to and across I-90. Bottlenecks identified in the traffic analysis include, (1) long southbound queues backing up beyond SE 28th Street resulting in frequent corridor delays between 8 to 10 minutes per PM Peak Hour trip due to insufficient general purpose (GP) capacity on 150th Ave SE, and (2) lack of sufficient left turn capacity from northbound 150th to westbound Eastgate Way and right turn capacity from westbound SE 37th to southbound 150th which results in queues spilling into GP travel lanes, further exacerbating congestion along 150th. Traffic backups along 150th Ave SE are worsening, especially in the Eastgate Way and SE 37th/38th St vicinities. By 2035 the corridor will be unable to serve over 20 percent of projected demand.
Projects — TIB Project Information
TIB Project Information
City of Bellevue's 150th Avenue
8-1-103(032)-1
8-1-103(032)-1
150th Avenue
SE 28th St to SE 38th St
FY 2024 Urban Arterial Program
Current Phase : Design
Total TIB Funding : $3,990,000
County: King | Legislative District: 41 | Project Length: 0.60 | TIB Engineer: Greg Armstrong | Last Payment Date:
Project Information
Lead Agency | BELLEVUE |
Funding Year | 2024 |
Program | UAP |
Current Phase | Design |
Legislative District | 41, 48 |
Congressional District | 9 |
Federal Route Number | 1335 |
Project Length | 0.60 mi. |
ADT | 39,000 |
Functional Class | Principal |
Type of Work | Traffic Control |
Project Contact | Mia Waters |
Contact Email | mwaters@bellevuewa.gov |
TIB Engineer | Greg Armstrong |
Last Payment Date | |
Cultural Resource Assessment | CRA |
Project Schedule
Target Date | Actual Date | |
---|---|---|
Project Selection Date | 12/02/2022 | |
Delayed Project Date | 01/01/2024 | |
DAHP Assessment Date | ||
Predesign Approval | ||
Design Approval | 03/15/2023 | 03/15/2023 |
Bid Auth. Approval | 01/10/2025 | |
Construction Approval | 02/15/2025 | |
Project Closeout | 06/30/2026 | |
Audit Date | ||
Withdrawn Date |
Project Funding
TIB Funds | Project Costs | |
---|---|---|
Environmental Study | 0 | 0 |
Design Study | 0 | 0 |
Total Predesign | 0 | 0 |
Special Study | 0 | 0 |
Design | 0 | 0 |
Right of Way | 0 | 0 |
Total Design | 0 | 0 |
Construction Engineering | 649,840 | 1,786,098 |
Construction Contract | 3,249,202 | 8,930,489 |
Other Construction | 90,958 | 250,000 |
Total Construction | 3,990,000 | 10,966,587 |
Total TIB Funding | 3,990,000 | 10,966,587 |
Local Funding Partners
Funding Amount | Percent | |
---|---|---|
BELLEVUE | 6,776,587 | 61.8% |
WSDOT Funding | 0 | 0.0% |
Developer Impact Fees | 200,000 | 1.8% |
Total Local Funding | 6,976,587 | 63.6% |
Project Description
The project addresses traffic chokepoints, significant travel time delay and safety hazards, the following roadway and intersection improvements are proposed along the 150th Ave SE corridor in the I-90 interchange vicinity (1) rechannelize 150th Ave SE southbound to include a new (third) general purpose vehicle travel lane from SE 28th St to SE 38th St (2) widen the 150th Ave SE/Eastgate Way intersection to add a 2nd northbound left turn pocket on 150th and 2nd westbound receiving lane on Eastgate Way (3) widen the 150th Ave SE/SE 37th St intersection to add a 2nd westbound left turn pocket on SE 37th St and a 2nd eastbound right turn pocket from the I-90 off ramp to 150th Ave SE as well as eliminate the unnecessary EB left turn option on this leg (4) widening and channelization improvements along SE 37th St from 150th Ave SE to the I-90 eastbound on-ramp (5) re-channelization and turn lane extensions on the 150th Ave SE I-90 overpass and (6) intersection re-channelization and signal enhancements at the intersection of 150th Ave SE and SE 38th St. All improvements are designed to increase roadway capacity, reduce travel delay, and improve safety by improving the predictability of traffic flow and eliminating ambiguous merging areas. These improvements are expected to serve projected vehicle demand and reduce per PM Peak Hour trip delay by about 5 minutes (over 50 percent).
Existing Condition
Project Benefits
- Improves safety;
- Completes gap;
- Relieves congestion;
- Relieves bottleneck
Project Delays
Delay Type | Resolution Date | Comments |
---|---|---|
Coordination Issues Project Delay |
Unresolved | The big issue delaying this project is WSDOT review of 1-90 Overcrossing within limited access area. They would like to bid Fall 2024 and have committed to no later than January 2025. |