EARLY WARNING: Harbor Island offramps closing this weekend

Heads-up from SDOT:

The off-ramps to Harbor Island from westbound West Seattle Bridge and from southbound SR99 will be closed this coming weekend beginning Friday evening, September 9, at 7 p.m. The off-ramps will be reopened Monday morning, September 12, by 5 a.m. The closures are needed in order for the replacement of three railroad crossings at the south end of Harbor Island.

• Motorists who are not in large trucks/commercial vehicles can detour by taking the high level West Seattle Bridge, using the Delridge Way exit, then taking the right onto Chelan Ave SW, another right onto SW Spokane St, and eastbound across the Duwamish River’s West Waterway and back onto Harbor Island.

• Large trucks and commercial vehicles can take “official signed” detour route because it is primarily intended for large trucks that unable to use the detour described above. The signed will direct motorists to go south on East Marginal Way S, across the First Ave S Bridge. They will be directed to take the first exit after the bridge, looping them back onto northbound 2nd Ave S, and onto W Marginal Way SW. After passing underneath the West Seattle Bridge, they will be directed to take a left turn onto SW Spokane St, which will take them eastbound back across the Duwamish River’s West Waterway and onto Harbor Island.

The railroad crossing work is part of the SDOT project currently repaving SW Spokane St from SW Klickitat Way to East Marginal Way S.

A map detailing this weekend’s detours is here.

2 Replies to "EARLY WARNING: Harbor Island offramps closing this weekend"

  • wetone September 7, 2016 (5:15 pm)

    Might be SDOT project but I believe most all work is being done by outside contractors. Hopefully rail work will be better done than sidewalk project as the new ADA ramps might not be to city spec’s ; ) hopefully city tax payers won’t get stuck paying to do twice like many other ADA ramps with-in city. 

  • Paul coile September 8, 2016 (7:21 am)

    Will the harbor island bridge be open to pedestrian foot traffic  during this time over the weekend?

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