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UPDATE Traffic Advisory: Weekend Intersection Closure of SW Alaska St and 35th Ave SW

Crews working on the 35th/Avalon Project

Crews working on the 35th/Avalon Project

This blog was updated on 12/31/2019 to share current information on January 3-6 closure.

The intersection of 35th Ave SW and SW Alaska Street will be closed this weekend, January 3 – 6. Travelers headed north on 35th Ave SW must follow detour at SW Morgan Street.

What’s happening on SW Alaska St and 35th Ave SW?

Earlier this year, as a part of the SW Seattle Paving: 35th/Avalon Project, construction began to make safety and transit improvements for people walking, bicycling, driving and riding the bus in West Seattle. When complete, improvements will include a new protected bike lane, new bus stops, widened sidewalks in some areas, and a full depth rebuild of the road.

We have now begun work on SW Alaska St and will be closing the intersection of 35th Ave SW and SW Alaska St for up to 3 weekends. The first closure was December 13-16th, and the second closure is scheduled for January 3 – 6, 2020. We need to close the intersection for the safety of people traveling and to allow workers, large equipment, and trucks to maneuver throughout the work zone efficiently and safely. This intersection closure is scheduled to begin at 9 AM to minimize night work and loud noise for near neighbors as we demolish, excavate, and rebuild the road. This work relies on good weather to allow the concrete to cure, so depending on weather, the schedule may change.

Here’s what you can expect:

 S C H E D U L E

Starting Friday, January 3 at 9 AM, the intersection of SW Alaska St and 35th Ave SW will be closed and is scheduled to reopen early morning on Monday, January 6.

C L O S U R E | D E T O U R

While the intersection of 35th Ave SW and SW Alaska St is closed, the following detours will be in place:

  • If you are traveling northbound on 35th Ave SW towards the West Seattle Bridge, you will turn left onto SW Morgan St, right onto 42nd Ave SW, and then right onto Fauntleroy Way SW
    • Please note: there will be no through access to 35th Ave SW Between SW Edmunds St and SW Morgan St. If people go past the detour turn at SW Morgan St, they will be turned around at SW Edmunds St and have to return to SW Morgan Street to continue the detour.
  • If you are traveling southbound from the West Seattle Bridge, you will take Fauntleroy Way SW, turn left onto 42nd Ave SW, left onto SW Morgan St and then right on 35th Ave SW
  • If you live off 35th Ave SW between SW Morgan St and SW Alaska St, please be patient as you approach our Uniformed Police Office at SW Morgan St. Inform them that you live in the area and they will allow local access to continue. We will be detouring all other traffic.
35th Ave Southwest & Southwest Alaska St Detour Map

35th Ave SW & SW Alaska St Detour Map

L A N E   R E S T R I C T I O N S

Local access only will be permitted on SW Alaska St, east of Fauntleroy Way SW, and on 35th Ave SW, south of SW Avalon Way and north of SW Morgan St. Pedestrian detours will be in place to maintain safety and mobility for people walking.


Expect loud noise, dust, and vibrations while crews are working. Crews may be jack hammering into the evening to ensure that the intersection is ready to reopen on Monday morning.

B U S I N E S S E S  A R E  O P E N

Please continue to visit businesses on 35th Ave SW and SW Avalon Way during construction. Pedestrian access to businesses will be maintained at all times – please follow signed pedestrian detours.


Buses will be taking detours. Sign up for King County Metro’s Rider Alerts to stay up to date on stop re-locations. If a stop is relocated or a bus is detoured, signs will also be posted along the corridor.

P R O J E C T  O U T C O M E

We’re repaving SW Avalon Way and 35th Ave SW between SW Spokane St and SW Alaska St and SW Alaska St between 36th Ave SW and 35th Ave SW. Repaving will make the street more comfortable to drive on and extend its useful life. The project will also:

  • Upgrade curb ramps
  • Make minor drainage system upgrades
  • Install protected bike lanes
  • Make bus stop improvements

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