Cangrejo bridge closed due to major structural failure.

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cavok

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I've seen some really big cranes and that doesn't look like a crane to me. It looks like some sort of support truss(?).

Mammoet also makes heavy transport equipment - like seen in the video. I've never seen anything with so many wheels. It's huge. That should have definitely caused some big traffic jams.
 

chico bill

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I've seen some really big cranes and that doesn't look like a crane to me. It looks like some sort of support truss(?).

Mammoet also makes heavy transport equipment - like seen in the video. I've never seen anything with so many wheels. It's huge. That should have definitely caused some big traffic jams.
We should all know soon. Maybe some DR1 member with time on their hands should drive into Cangrejo for a report?
 

JD Jones

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Anything is possible but that piece on the end appears to be crane ballast.
I'm just guessing because the steel on the trailer says Mammoet on it - a company that specializes in heavy lifts and offers several types of crawler cranes
Yep. You're right. Crane probably means they've got something built and ready to drop into place.
 
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Ecoman1949

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Anything is possible but that piece on the end appears to be crane ballast.
I'm just guessing because the steel on the trailer says Mammoet on it - a company that specializes in heavy lifts and offers several types of crawler cranes
What was actually proposed for the replacement? Steel trestle or prestressed concrete span? Either way a heavy lift crane has to be in place for the concrete abutment construction and bridge replacement, trestle or concrete span. Prestressed concrete span is more amenable to multiple lanes, heavier loads, and longer life.
 
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JD Jones

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What was actually proposed for the replacement? Steel trestle or prestressed concrete span? Either way a heavy lift crane has to be in place for the concrete abutment construction and bridge replacement, trestle or concrete span. Prestressed concrete span is more amenable to multiple lanes, heavier loads, and longer life.
I'd be surprised if it's not 'double T' beams.
 

monfongo

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I'm surprised that two people with worthless pieces of of property on rio verde could hold the project up for so long and making life miserable for so many people. They should have taken the property and paid them fair market value a long time ago.
 

JD Jones

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I'm surprised that two people with worthless pieces of of property on rio verde could hold the project up for so long and making life miserable for so many people. They should have taken the property and paid them fair market value a long time ago.
And if you were the owner of one of those properties?
 

jd426

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I'm surprised that two people with worthless pieces of of property on rio verde could hold the project up for so long and making life miserable for so many people. They should have taken the property and paid them fair market value a long time ago.
Im alsoconfused again, people keep saying the LAND DEAL was NOT the issue and was taken care of a while ago.
So which is it and why would this Crane , with Pre Built Pieces not have been on site much much sooner .
I know CEMENT in Pre Made pieces takes a long time to CURE but come on.
Plus we have the Presidents People there for the signing just the other day ?.
Who knows what the truth is . but something held it up , and it was not the lack of Cement
 

chico bill

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I'm surprised that two people with worthless pieces of of property on rio verde could hold the project up for so long and making life miserable for so many people. They should have taken the property and paid them fair market value a long time ago.
Not worthless to them. OK it isn't Lifestyles Hotel but to them it's their livelihood. And businesses when they move locations may lose the customer base they built for years, even a dumpy fish restaurant. Had a friend that actually worked at that restaurant a couple years ago.
 
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RDKNIGHT

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Not worthless to them. OK it isn't Lifestyles Hotel but to them it's their livelihood. And businesses when they move locations may lose the customer base they built for years, even a dumpy fish restaurant. Had a friend that actually worked at that restaurant a couple years ago.
everything has a price .I'm sure they have their price
 
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RDKNIGHT

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What was actually proposed for the replacement? Steel trestle or prestressed concrete span? Either way a heavy lift crane has to be in place for the concrete abutment construction and bridge replacement, trestle or concrete span. Prestressed concrete span is more amenable to multiple lanes, heavier loads, and longer life.
if prestressed concrete is better that means they're going to go with the steel structure :rolleyes:
 

jd426

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Im curious why steel structure is a problem ? all the Bridges over Salt water use steel, it just needs maintenance , painting every couple years .
for a short span like this , its probably just easier to put in Pre fab Concrete . than to start Assembling Steel and welding it.
Pre Fab concrete could literally be up in 2 days . it can be done .
 
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JD Jones

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Im curious why steel structure is a problem ? all the Bridges over Salt water use steel, it just needs maintenance , painting every couple years .
for a short span like this , its probably just easier to put in Pre fab Concrete . than to start Assembling Steel and welding it.
Pre Fab concrete could literally be up in 2 days . it can be done .
The same thing as what they are using for the Metro. They even install them at night.
 

Ecoman1949

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Im curious why steel structure is a problem ? all the Bridges over Salt water use steel, it just needs maintenance , painting every couple years .
for a short span like this , its probably just easier to put in Pre fab Concrete . than to start Assembling Steel and welding it.
Pre Fab concrete could literally be up in 2 days . it can be done .
The steel isn’t the problem. The Cangrejo trestle bridge became a problem when overloaded trucks eventually weakened it to the point where it failed. The temporary repair didn’t last because overloaded trucks also weakened it quickly. The overloaded truck drivers crashed through the temporary barriers designed to bar them from the bridge after the temporary repairs were done.
 

cavok

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A steel trestle bridge wouldn't require a very big crane. They get welded and riveted together in place. On the other hand, pre-stressed concrete I-beams are pretty heavy.
 

cavok

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Yes they are , its amazing to wach when they come on on 18 wheelers . can even imagine what they weigh .
I've seen some being moved that are so long they have to put another "truck" of wheels on the back end of the beam.
 

chico bill

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Yes they are , its amazing to wach when they come on on 18 wheelers . can even imagine what they weigh .
165 lbs per cubic foot more or less.
I've done several bridges with concrete I or T beams and a concrete deck. And much longer beam spans than this one and lifted the beams with cranes.
Pretty sure this will be precast beams lifted by cranes onto the abutment pads and a poured deck above.
Maybe they will get creative and do a box girder bridge but not likely as that's more labor intensive.

By the way the bridge that was removed was called a truss superstructure bridge, not 'trestle bridge'
 
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