The new way of dealing with failing and neglected infrastructure.

Posted by Dobrien 7 years, 1 month ago to Education
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All eyes were on the reopening of the damaged spillway at Oroville Dam . It is only able to release water at 1/3 of the designed flow. The dam engineers have lost the ability to reduce the flow to any thing less than 45,000 cfs because it will erode the upper undamaged spillway. Any more and it cuts into the mountain towards the main dam.
SOURCE URL: https://youtu.be/kQe0J5NLLT4


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  • Posted by $ Abaco 7 years, 1 month ago
    The damage is huge.
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    • Posted by 7 years, 1 month ago
      Yes . The potential damage from over topping in the spring melt is very serious. Spillway capacity 150,000 cu ft/s (4,200 m3/s) The Dam operators can only release water at 1/3 of designed capacity.
      The hope is that the inflow doesn't overwhelm the ability to outflow.
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  • Posted by $ CBJ 7 years, 1 month ago
    So what will they be able to do when the next big flood occurs?
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    • Posted by 7 years, 1 month ago
      That's the extent of it. The snow pack needs to melt slowly and then hope it doesn't rain.
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      • Posted by $ CBJ 7 years, 1 month ago
        I saw on TV that they're expecting new storms next week with up to five inches of rain.
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        • Posted by 7 years, 1 month ago
          Lots of problems see: Increased water flows on the Sacramento River caused damage to a diversion dam in Redding that officials say will now cost hundreds of thousands of dollars to fix.

          The diversion dam redirects water from the Sacramento River in Redding underneath the city and down to Anderson and Cottonwood.

          It's a design that's held tried and true for almost 100 years, until now.

          Maintenance supervisor for the Anderson Cottonwood Irrigation District Randy Davis says the damage done to the diversion dam is beyond anything he and his team can handle.

          “I've been here 36 years, and this is about 100 percent worse than anything I've seen in the past,” Davis said. “And we just, our maintenance crew is just not setup to do that much work.”
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  • Posted by Owlsrayne 7 years, 1 month ago
    I wonder whose pocket the money is coming from to fix the dam? If they think min/max flow rate below the original design they have their heads in the water. Weather conditions and mountain snow melt will increase the amount of water in that reservoir.The water department will have to keep dam operators there 24/7 in of excessive water levels.
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  • Posted by Herb7734 7 years, 1 month ago
    Everything wears out, from dams, to cars, to animal bodies, but at the same time is eternal if we count eternity in 15 or 20 billions of years. As things disintegrate into thei components they reform by adding themselves to other combinations or remain without being a part of anything. Seems pretty simple, and yet.......
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    • Posted by 7 years, 1 month ago
      Seasons ....they go round and round time to drag our feet to slow the wheel down. A gentleman who farms near the Yuba County town of Marysville, told the Los Angeles Times this week:
      “My concern right now is erosion,” Foster said. “We have 100-year-old oak trees lying in the river. Everything that was there, old growth that protected the banks, it was just sucked in. … This is all going to go under water and it’s all freshly slipped material. This is all going to start eroding. We don’t know if it’s going to take the banks. … The river could actually start a new channel.”
      … Foster said a 300-foot buffer zone of bluffs, trees and vegetation protecting his walnut orchard was wiped out and now the orchard sits in the path of future rising waters. Debris turned the river brown.
      “I’ve never seen it so dirty in my life,” he said.
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  • Posted by Jstork 7 years, 1 month ago
    There is a product out there called grancrete that cures in about twenty minutes. I looked into it (a similar product used in the oilfield) as a stucco application for houses. The hold back was cost at about $6000 per cubic meter. A fiber reinforced gunite application might be worth a try as a fast solution for such problems. The fast cure rate would be a definite advantage. If it was privately owned and money was at stake, I would bet the problem would be solved.
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    • Posted by 7 years, 1 month ago
      Scaffolding has been erected Monday at the edge of the broken main Oroville Dam spillway, and a special concrete mixture is being sprayed into the void by workers as repairs continue.
      I saw this but couldn't find the details of the concrete spray.
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  • Posted by GaryL 7 years, 1 month ago
    I thought Gov.Moonbat was building some high speed train for billions that should be able to wisk all those in danger right out of there really fast.
    I should not be so harsh, my NY Governor is just as big if not a bigger Moonbat.
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    • Posted by 7 years, 1 month ago
      Same boat here with Gov Dayton who has his head far up where the sun don't shine. This is another waste more spawn from Kalifornia's Gov.

      Wade Crowfoot, a former advisor to Gov. Jerry Brown who now leads the Water Foundation, a nonprofit research organization in Sacramento, compared the situation to the state’s years-long drought.

      “This is a wake-up call,” he said. “ The drought reminded us we need to use water more wisely. Oroville reminds us that we need to upgrade our infrastructure and our management to move water more wisely.”
      Brilliant........ May be he could remind us to drink when thirsty.
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  • Posted by 7 years, 1 month ago
    Gov Moonbeam goes to the federal well again.Also, Governor Jerry Brown has requested a Presidential Major Disaster Declaration for the Oroville Dam spillway incident. The declaration would help with repairs to the damaged Oroville Dam spillway and would bolster state and local recovery efforts following the February storms that caused major flooding, levee breeches, the evacuation of residents, power outages, and extensive damage to roads and bridges across California.

    Sunday's request by Governor Brown follows three other separate Presidential major Disaster Declaration requests that were granted last month and last week , to support response efforts for the situation at the Oroville Dam, and impacts of the early and late January storm systems.
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