Tulsa road construction rant thread

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C

Clay

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Well, im sitting here in the van headed to a scoping meeting in Latimer co. And im quizzing our State Bridge engineer (big wig) about the Tulsa situation. I don't do much work in that division so im not sure of the exact situation. He agrees that is was a big mistake to start the BA project while working on the parralell route (is that 44?) and that project certainly could have waited. Also it was designed by a private consultant. It was designed to be constructed under 1 lane traffic which is a huge mistake considering the traffic count.
So now I understand the quagmire a little better.
He does not know who made these calls but the Div. 8 office in Tulsa could have stopped it and they didn't?
 

Jefpainthorse

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The State Motto in Oklahoma is in Latin... it loosley translates to a phrase that mean, "build good roads and the tourists might stay...."

JB... I dont want to live in Jersey or Chicago either... My point is DOT people are the same people in every state of the Union-they just don't look alike.

Texas roads are great... but Texas roads are NEW. Dallas/Ft Worth has some snags and chronic construction too. We should also not that are neigbor States are not so paranoid about taking Federal Funding in general (OK tends to not ask for funding or grants in general) and Arkansas and Texas have better tax bases, more traffic and the powers that be figured out that poor roads kill economics. Our small cities and state politics are run from behind Oz's curtain by a flock of cotton patch Ceasars that have a vested interest in keeping small towns small (and broke) so the Funeral Director, Florist and Local insurance guy can keep status as the biggest fishes in small ponds.

We have some ideas in the State Charter that were kinda progressive back in 1907.... but they aint workin in 2012.
 

PUMPKIN

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I agree that they aren't fun to drive but you should be thankful they are that way. The arc in the spans are called camber which put simply means it has a preloaded stress/arc above plane. If there were to be a traffic jam and the bridges were backed up, the spans are engineered to handle the weight of all those cars. At that load rate the span should be almost flat with no discernable arc when fully loaded. If they started out with no/light load at no discernable arc, when capacity was reached it would result in a bow (arc below plane) which would certainly result in catastrophic failure.
I've crossed a bridge or two I'm my life, if that's what you want to believe.
 
C

Clay

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The arc in the spans are called camber which put simply means it has a preloaded stress/arc above plane. If there were to be a traffic jam and the bridges were backed up, the spans are engineered to handle the weight of all those cars. At that load rate the span should be almost flat with no discernable arc when fully loaded. If they started out with no/light load at no discernable arc, when capacity was reached it would result in a bow (arc below plane) which would certainly result in catastrophic failure.

I've crossed a bridge or two I'm my life, if that's what you want to believe.
Negative. The camber deflection is designed to sit flat once the deck load is applied. These beams are indeed pre-stressed but this was a definite screw up by the designer. These bridges are in fact designed to be able to hold bumper to bumper semi trucks as well as one over loaded rig like a crane. But they are supposed to be flat and not arced. There is another one like this on the new turnpike north of Yukon.
 

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