Construction on 145th Street is currently underway to enhance safety, improve traffic flow, and boost connectivity in the region. This crucial infrastructure project will bring long-term benefits, but it also means temporary adjustments for drivers, pedestrians, and residents. Here’s what you need to know to navigate the ongoing work on 145th Street.
Current Closures and Detours on 1st Avenue NE
As of recent updates, 1st Avenue NE is closed at its southern intersection with N 145th Street. This closure, which began earlier, is expected to remain in effect until the end of April. During this period, through traffic is restricted, and only local access is permitted. A clearly marked detour is in place, guiding traffic to Meridian Avenue North as an alternative route. Construction crews are actively working in this area, focusing on wall construction, intersection and signal upgrades, and the installation of essential sewer and storm systems.
145th Street Reopened Between Meridian and I-5 with Lane Restrictions
In positive news for commuters, N 145th Street between Meridian Avenue North and I-5 has been reopened. However, traffic is currently limited to a single lane in each direction. Access to and from I-5 remains open, ensuring continued connectivity to the interstate. Temporary traffic signals are in use at the I-5 interchange to manage traffic flow effectively. This lane configuration will be in place as construction progresses towards the installation of roundabouts at the I-5 interchange, scheduled for 2025.
Project Overview: Enhancing the 145th Street Corridor
The comprehensive 145th Street Corridor Project addresses much-needed improvements to NE 145th Street (State Route 523), including significant upgrades to the Interstate 5 interchange. Phase 1 of this project, in conjunction with the I-5 interchange project, is transforming the signalized intersections on both sides of I-5 into modern roundabouts. This phase also includes updating lane configurations on the bridge spanning I-5. On the western side of the interchange, the roadway between I-5 and Corliss Avenue is being widened to optimize traffic operations, enhance mobility for all users, and improve overall safety.
Looking ahead, Phases 2 and 3 of the 145th Street Corridor Project are slated to commence in 2025. These subsequent phases will extend the project’s benefits further west to Linden Avenue, creating a continuous corridor of improvements along 145th Street.
Upon completion, the entire project promises to significantly enhance safety and multimodal access throughout the 145th Street corridor. It will also improve connections to the future Sound Transit Shoreline South/148th Light Rail Station. The interchange improvements are specifically designed to alleviate existing traffic congestion and create a more reliable, safer, and efficient transportation network for everyone.
Aerial rendering of the 145th Street and I-5 interchange improvements, showcasing planned roundabouts and updated lane configurations.
Project Timeline, Funding, and Contact Information
Phase 1 of the 145th Street Corridor Project and the 145th and I-5 Interchange Project are currently scheduled for 2024-2025. Johansen Construction Company has been awarded the contract for this vital infrastructure work.
The financial commitment to these improvements is substantial, with the 145th Street Corridor Project Phase 1 allocated $28.7 million and the 145th and I-5 Interchange Project funded at $35 million.
For any inquiries or for further details, you can reach out to the project team via email at [email protected] or by calling the project hotline at 206-899-5127. Please be aware that the construction schedule is subject to adjustments as the project progresses.
What to Expect During Construction
Throughout the duration of the project, those traveling and residing in the vicinity of 145th Street should anticipate ongoing traffic pattern changes. These may include lane shifts, overnight lane and ramp closures, and reduced speed limits within active work zones. Both short-term and long-term closures will be necessary at different stages of construction. Staying informed about these potential disruptions will be key to a smoother commute.
