The incredible growing sinkhole in Grass Valley

This video was posted by engineering firm Holdrege & Kul

Author: jeffpelline

Jeff Pelline is a veteran editor and award-winning journalist - in print and online. He is publisher of Sierra FoodWineArt magazine and its website Jeff covered business and technology for The San Francisco Chronicle for years, was a founding editor and Editor of CNET News, and was Editor of The Union, a 145-year-old newspaper in Grass Valley. Jeff has a bachelor's degree from UC Berkeley and a master's from Northwestern University. His hobbies include sailing and trout fishing.

One thought on “The incredible growing sinkhole in Grass Valley”

  1. Today’s report by Jonathan Keehn, President of the Wolf Creek Community Alliance:

    “I talked to Howard Levine at the site today about 1 pm.

    “They got down to the culvert yesterday. At least 20′ is mangled and will have to be replaced.

    “By noon they had about 1/2 of the dirt covered with plastic, held down by tires and chain link. It’ll be nip and tuck to get it protected before the rain tomorrow. At the bottom they will have to create a temporary structure for the water to go through during the upcoming rain, and probably for several months until they can divert the water long enough to do the repair on the culvert. Then it has to be backfilled and compacted, replanted etc. of course.

    “City council is meeting tonight to declare emergency, so they can apply to the state for funding. The County has already declared.

    “Having the access road/trail in place probably saved 3 days of digging.

    “Holdredge & Kull were flying their drone again taking video.

    “I was also down by the creek yesterday about noon – the water was a lot clearer than 24 hours previously, but I’m sure it will get bad again soon.”


    “Jonathan Keehn
    Wolf Creek Community Alliance
    P.O.Box 477
    Grass Valley, CA 95945

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