All overnight trail access will be closed through Myrtle Edwards and Centennial Parks March 30 and 31, according to a notice from the Elliott Bay Connections team that SDOT posted to Bluesky.
Both the walking and biking paths will be closed from the Olympic Sculpture Park to the Expedia campus starting each evening at 8 p.m. and reopening each morning at 5 a.m.
Especially for folks heading home late on those evenings, note that there is no good alternative route near the trail. You’ll pretty much be limited to biking on Western and Elliott Avenues, which is not very comfortable. There is sidewalk on Elliott Ave that might not be too full of people later in the evening or overnight. Then you can take the Helix Bridge and find your way behind the Expedia campus back to the trail. Alternatively, consider starting your detour further south and going the other way around Queen Anne via Westlake and the Ship Canal Trail. Depending on your destination it may be a bit longer, but much nicer and less stressful.
The closure is part of the Elliott Bay Connections project, which has fully remade the waterfront park area and created a new path along the east side of Alaskan Way. That project is anticipated to be complete by the summer.