Memorial Stadium Construction

Construction Update

The redevelopment of Memorial Stadium is a legacy project to better serve the needs of future generations of SPS students and maximize its use for the community in new and different ways.

With the construction phase underway now through 2027 – led by construction partner Sellen Construction – we will provide regular project updates via this website, campus signage, digital alerts, and monthly project email updates available upon request at MemorialStadium@sellen.com. In addition, Seattle Center will continue to coordinate updates with partner/resident organizations and event partners, and will post construction alerts and signage on campus.

Construction Schedule

Construction work hours have been updated to 6 a.m. - 2:30 p.m. on weekdays in accordance with site logistics and permit approvals. This activity will result in noise from vacuum excavator trucks, saw cutting, core hole drilling, dump trucks, and other heavy equipment.

Upcoming Construction Activity & Neighborhood Impact Updates

Harrison Street pedestrian access (between MOPOP and the Seattle Center Armory) will remain closed (24 hours/day; seven days a week) until demolition is complete. Please follow detour signs to Thomas Street, the Artists at Play area or Mercer Street to access the Seattle Center campus from 5^th Avenue North.
Demolition of the grandstands is currently under way.
A temporary perimeter fence is installed (through Sept. 18^th) on the east side of the covered walkway near the International Fountain; pedestrian access will be maintained.
Work to replace a Seattle Public Utilities (SPU) sewer main which runs under the stadium is projected to begin in mid-September, as required by SPU as part of the Memorial Stadium project. Beginning Sept. 8^th, Republican St. will be closed while crews excavate and bore for the new sewer main. During this time deliveries to the Exhibition Hall, McCaw Hall, and Opera loading docks need to reroute to 4^th Ave. North & Mercer Street.
Construction vehicle traffic will shift to the north side of the SPS parking lot September through February to accommodate the sewer line replacement work. Flaggers will be in place to control construction and public access.
As part of the construction of a new Memorial Stadium, a number of trees within the construction zone have been removed. This work is a necessary and carefully planned part of the project and approved through the City’s permitting and environmental processes. Learn more about tree sustainability including tree preservation, tree replanting, tree offsets, and the new tree canopy as part of the new landscape design.

View Monthly Construction Update Archive

View the construction site

Getting Around

Sidewalk Closures

Republican St. and 4^th Ave N. sidewalks will be closed on both sides of the street from 5^th Ave N. to Mercer Street.
The sidewalk along Harrison St. will be narrowed as hard barriers are installed.

Road Closures & Traffic Impacts

Republican St. and 4^th Ave N. will be closed to through traffic west of the Seattle Center parking lot exit. A new traffic signal will be installed to manage eastbound traffic, allowing vehicles to safely exit the parking lot onto 5^th Ave N.