The Spokane Street Viaduct Widening Project continues to move closer to completion, with most work now expected to be completed by early 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 S 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 S, from the on/off-ramp to the north side of the intersection of First Avenue S and S 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 S 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 S.
• Two lanes of traffic in each direction of First Ave S between S Spokane and S Horton Streets.
• The eastbound lower S Spokane Street between East Marginal Way S and First Avenue S.