DeSantis Rebuilt A Hurricane-Destroyed Bridge In Three Days

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  • rob63

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    In case anyone's bored...

    The next morning, after Nimitz had cut orders voiding the safety rule of spending a day purging her tanks of stored aviation fuel,

    To satisfy the enormous power needs of the repair crews the Navy contacted Leslie Hicks, president of the Hawaiian Electric Company, who arranged a series of rolling blackouts in Honolulu. Only the most urgent repairs were made. Instead of individually fixing the hull’s ruptured seams, an enormous steel plate was welded over the damaged section.

    On the morning of May 30, more patched than repaired but fit enough to fight, Yorktown steamed out of Pearl Harbor




    Sometimes.. good enough is.. good enough

    Well, it helped that they were just going to sink it a week later anyway.
     

    jagee

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    Just waiting for the concrete to cure properly would take days, wouldn’t it?
    Yes. There are "high early" mixes, but to form it up on day 1, pour on day 2, and wreck day 3 is not realistic for that kind of structure. Some footers, or a sidewalk, sure...an entire bridge? No. The engineering alone to design the thing would take weeks if a team was on it around the clock.
     

    Tactically Fat

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    I'll say it again: Temporarily fixed.

    This isn't the "new" bridge. These were already extant "panels", so to speak, that were set on the pylons.

    That said, in lots of places and with lots of bridges - many of these types of panels really are just set onto the pylons.

    Ever been driving out and about Brown County, IN and see the signs warning motorcycles about the grated bridge decks? They started putting the grates on them to let flood water THROUGH the deck as opposed to pressing up from underneath and floating the bridge deck away completely.

    Are interstate bridges just setting on pylons without being tied down? I don't think so - but don't know. There are probably 50 criteria that all have to be met in order for a bridge deck to just sit on pylons.
     

    Ingomike

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    I'll say it again: Temporarily fixed.

    This isn't the "new" bridge. These were already extant "panels", so to speak, that were set on the pylons.
    Is there a working bridge in just a few days? That is a particularly remarkable achievement for government.

    Pilings support a bridge. Pylons are an entirely different thing.

     

    bobzilla

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    Brownswhitanon.
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    Ark

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    And yet Indianapolis can't mill down and repave a stretch of street in less than six weeks.
     

    JCSR

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    Santa Claus
    The picture bothers me, though, because the buildings on land on either end do not appear to show anywhere near the level of damage apparent in the before photo. It looks too clean
    The second pic was about 16 days after Ian hit the island. I would like to see a time-lapse of the work being done. There is an amazing amount of work that was done.
     

    actaeon277

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    And yet Indianapolis can't mill down and repave a stretch of street in less than six weeks.
    They can, it just cost more.. a lot more.

    Companies working like that, if they were to work solidly work on the job, and just that job, would be done.
    But then they'd be lining up their next job, and no income while they do that.
    So, they line up multiple jobs, overlapping.
    A little here, a little there.
    Then everyone is working all the time.

    But if you pay them enough, they can/will concentrate on it. But then you're paying for it.

    Just like, why not work on roads/highways 24 hours a day, till it's done?
    They can.
    But $$$$$
     

    DoggyDaddy

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    They can, it just cost more.. a lot more.

    Companies working like that, if they were to work solidly work on the job, and just that job, would be done.
    But then they'd be lining up their next job, and no income while they do that.
    So, they line up multiple jobs, overlapping.
    A little here, a little there.
    Then everyone is working all the time.

    But if you pay them enough, they can/will concentrate on it. But then you're paying for it.

    Just like, why not work on roads/highways 24 hours a day, till it's done?
    They can.
    But $$$$$
    That's just poor planning on the contractors' part IMHO. Estimate how long a job will take, concentrating only on that job. Bid another job to start immediately after that one is complete. Nobody needs to stop working to bid the next job. Lather, rinse, repeat.
     

    actaeon277

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    That's just poor planning on the contractors' part IMHO. Estimate how long a job will take, concentrating only on that job. Bid another job to start immediately after that one is complete. Nobody needs to stop working to bid the next job. Lather, rinse, repeat.
    You don't think there is a lot of slippage in building roads/bridges?
    How come other road companies haven't decided to do it?
     

    DoggyDaddy

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    You don't think there is a lot of slippage in building roads/bridges?
    How come other road companies haven't decided to do it?
    You can build in a little overlap, sure. But seeing projects started that then sit for weeks at a time with NO work being done is ****-poor planning, plain and simple. When they re-did I-70 a few years ago, under the "Hyper-fix" project, they gave the contractors a bonus incentive if they completed it early. And the contractors were penalized for every deadline that they missed. Amazingly enough, the project was completed early. Funny how that works, ain't it?
     

    actaeon277

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    You can build in a little overlap, sure. But seeing projects started that then sit for weeks at a time with NO work being done is ****-poor planning, plain and simple. When they re-did I-70 a few years ago, under the "Hyper-fix" project, they gave the contractors a bonus incentive if they completed it early. And the contractors were penalized for every deadline that they missed. Amazingly enough, the project was completed early. Funny how that works, ain't it?
    yes.
    And it costs more.

    If you spend more, you can get things done.
     
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