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Thread: TX Llano River flooding OCT16 2018

  1. #31
    Debbie's Servant Lee's Avatar
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    Cranes are placing beams today.


    Video
    https://www.325internet.com/bridge-cam.html
    Lee
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  2. #32
    not so retired henzilla's Avatar
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    Wonder where those are being cast? They were not onsite during my spy visit.
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  3. #33
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by henzilla View Post
    They were not onsite during my spy visit.
    The one I watched them place was lifted from the semi that delivered it.

    I watched about 5 minutes this morning and they were getting ready to lower a rebar cage for a piling.
    I wonder if those big pipes you saw were the casings they used when drilling?
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  4. #34
    Debbie's Servant Lee's Avatar
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    Just took a quick look at the video.
    Appears a pump truck is pouring concrete in one of the piling.
    Lee
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  5. #35
    Debbie's Servant Lee's Avatar
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    Surprised to see they're not working today.

    Edit: Looking at the contract info they are not working weekends.
    The PDF file shows the December pay estimate.

    ftp://ftp.dot.state.tx.us/pub/txdot-.../634068001.pdf

    Edit: the PDF has been updated to show work completed in January.
    Last edited by Lee; 02-08-2019 at 11:45 PM.
    Lee
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  6. #36
    Debbie's Servant Lee's Avatar
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    Looks like they're making good progress.
    Bottom mat of deck steel is almost done on the first section of the deck.
    They are probably also placing the top mat but can't see that area anymore.
    At least one more piling cap has been poured.
    Can't see through the drill rigs to see how many piling are done.

    Is it common in southern states to not use green epoxy coated steel in bridge construction?

    The camera is interesting. I watch a couple minutes each day to see what's going on.

    I'm surprised non of the workers moon the camera
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  7. #37
    not so retired henzilla's Avatar
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    Haven't looked in a few days, they are moving along for sure.

    Do not recall seeing coated steel around area on any project. Maybe lack of seasonal road salt?
    Read somewhere the decision to let bare steel oxidize was a natural protection on some big projects here when it was noticed by a lot of folks.
    The iconic Pennybacker (Loop 360) bridge is a paint free structure and had some folks upset when it was left natural on purpose.

    https://en.m.wikipedia.org/wiki/Pennybacker_Bridge

    Those large pipes I saw on south shore do look like the casings they are drilling into...just looked very long for the depth I assumed the river was at that point
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  8. #38
    Registered User RIDERR1150GSADV's Avatar
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    Quote Originally Posted by Lee View Post
    Looks like they're making good progress.
    Bottom mat of deck steel is almost done on the first section of the deck.
    They are probably also placing the top mat but can't see that area anymore.
    At least one more piling cap has been poured.
    Can't see through the drill rigs to see how many piling are done.

    Is it common in southern states to not use green epoxy coated steel in bridge construction?

    The camera is interesting. I watch a couple minutes each day to see what's going on.

    I'm surprised non of the workers moon the camera
    Re: Rebar.
    Not really but it depends on the location. The new bridges on the 18 mile stretch and the one over Jewfish Creek in the FL Keys all got constructed using epoxy coated rebar. The older ones from the 80's not so much and they are all being reinforced as we speak. Most new buildings like the schools and hospitals are built using the good stuff too. Salt in the air will over time permeate the concrete and attach the steel within.
    I had to fix quite a few columns on my house as the steel used was cheap.
    In the old days unscrupulous contractors would use saltwater to mix the concrete with so many homes are falling apart.
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  9. #39
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by henzilla View Post
    Do not recall seeing coated steel around area on any project. Maybe lack of seasonal road salt?
    Read somewhere the decision to let bare steel oxidize was a natural protection on some big projects here when it was noticed by a lot of folks.
    I figured you got enough freezing weather that the DOT would salt the bridges.
    Maybe it does not happen enough to be a issue.

    You're right about exposed steel being left bare on some structures now.
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  10. #40
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by RIDERR1150GSADV View Post
    .
    In the old days unscrupulous contractors would use saltwater to mix the concrete with so many homes are falling apart.
    Wow, that's crazy.
    Lee
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  11. #41
    Quote Originally Posted by Lee View Post
    I figured you got enough freezing weather that the DOT would salt the bridges.
    Maybe it does not happen enough to be a issue.

    You're right about exposed steel being left bare on some structures now.
    Back in the '70s and '80s there was a lot of use of "Corten" (sp?) steel. It was polished and then left to oxidize (rust) naturally. It would turn reddish orange but not get crusty. It was used as a "design feature" and was a bit of a fad. Minnesota used it for support columns and beams at some new Interstate rest areas.

    https://en.wikipedia.org/wiki/Weathering_steel
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  12. #42
    Debbie's Servant Lee's Avatar
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    The High Trestle bicycle bridge at the upper end of Saylorville Lake has uncoated guard rails, and whatever you call the upper decorative structure.

    8-12-16 (2).jpg

    KellyGreen2.JPG
    Lee
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  13. #43
    Debbie's Servant Lee's Avatar
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    Here's the January pay estimate.
    ftp://ftp.dot.state.tx.us/pub/txdot-.../634068001.pdf
    Page 3 shows work completed in January.
    Lee
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  14. #44
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    You guys are in love with this bridge.
    Rinty

  15. #45
    not so retired henzilla's Avatar
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    Quote Originally Posted by Rinty View Post
    You guys are in love with this bridge.
    Because it goes somewhere

    I have that route as an automatic in my head and have headed to cross the river there a few times recently...and remember about the time a u-turn is required

    The LCRA is going to raise the level on Lake LBJ for Spring Breakers ahead of the original plan of another month or so, assuming politics and tourism dollars played a part. Still submerged boats and docks and flood debris breaking the surface at lower level. Folks who scheduled repairs to property including docks and cleanup may not happen this year now. Crazy to let folks unaware of hazards out on lakes, but seems they will.

    https://www.kxan.com/news/local/aust...ses/1765667413
    Have not seen if they located the remnants of the concrete decking of the knocked down bridge seen rolling in the flood current in earlier posts.
    Last edited by henzilla; 02-09-2019 at 03:13 PM. Reason: added link
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