UPDATE: Spokane Street Viaduct – First Avenue Off-ramp will reopen Sept. 19
The Seattle Department of Transportation shared an updated look at the Spokane Street Viaduct Widening Project and announced that most work is expected to be complete by early to mid October.
"The eastbound off-ramp at First Avenue S will reopen Wednesday morning, September 19. The same morning, First Avenue S between S Spokane and S Horton Streets will be returned to two travel lanes in each direction, and the eastbound stretch of surface S Spokane Street from East Marginal Way to First Avenue S will reopen.
The only project-related street closure over the coming week will be a modest one—the Tuesday, September 18, overnight closure of First Avenue S, from the on/off-ramp to the north side of the intersection of First Avenue and S Spokane for both north and southbound traffic. The First Avenue on-ramp to West Seattle will remain open.
These and other project related traffic impacts are outlined below.
Monday, September 17
· Surface South Spokane Street west of East Marginal Way will be restricted overnight from 10 p.m. on Monday until 2 a.m. on Tuesday morning. During this time, northbound traffic on East Marginal Way wishing to turn west onto S Spokane Street will be detoured to the north and directed to make a u-turn. Southbound traffic on East Marginal Way will be permitted to turn west onto S Spokane Street.
Tuesday, September 18
· First Avenue South, from the on/off-ramp to the north side of the intersection of First Avenue South and South Spokane Street will be closed from 10 p.m. on Tuesday until 5 a.m. on Wednesday morning. The on/off-ramp connecting the westbound lanes of the Spokane Street Viaduct with First Avenue South will remain open during the closure.
Reopening Wednesday, September 19 at 6 a.m.
· The eastbound off-ramp from the Spokane Street Viaduct at First Avenue South.
· Two lanes of traffic in each direction of First Ave S between S Spokane and S Horton Streets.
· The eastbound lower South Spokane Street between East Marginal Way South and First Avenue South.