ROAD WORK: Here’s the plan for the 35th SW sinkhole

Some readers have asked about the sinkhole coned off in the middle of 35th SW near SW Edmunds. We asked SDOT, which in turn pointed us to Seattle Public Utilities; SPU spokesperson Brad Wong tells WSB that crews investigated it today:

Seattle Public Utilities is monitoring and working on a void in the 4700 block of 35th Avenue Southwest, which was reported by the Seattle Department of Transportation.

On the morning of February 24, SPU crews completed an initial investigation and inspection of the roadway and found that a 10-inch combined sewer pipe had collapsed. Flow, though, was continuing. As of 1 p.m., SPU had not received any report about properties experiencing sewer backups.

SPU is working with SDOT on traffic control in the affected area, which is barricaded. SPU crews are moving a pump unit to the location as a preventive measure for any system backup. SPU expects the pipe rehabilitation work on the affected area to be finished in about two weeks.

This stirs memories of a water break that flooded 35th downhill from there, between Alaska and Avalon, in 2017. That, however, was blamed on a private line.

7 Replies to "ROAD WORK: Here's the plan for the 35th SW sinkhole"

  • kj February 24, 2025 (8:57 pm)

    How about the slowly sinking road on Dawson just west of California?

    • Local February 25, 2025 (3:11 pm)

      Report on find it fix it

  • Alki Swammer February 24, 2025 (10:01 pm)

    Heres a concept: the City should proactively replace its ancient sewer lines rather than piecemeal as main lines (and roads) collapse!

    • Pete February 25, 2025 (6:01 am)

      They already do this…

  • fauntleroy flat February 24, 2025 (10:49 pm)

    Drove over that in the dark right after it happened …one flat tire later

  • Amy February 24, 2025 (10:56 pm)

    Where is Rob, the king of pothole repairs?!?!

    • Student February 25, 2025 (12:59 am)

      I think he’s having a public feud with a traffic curb. I expected more from him 

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