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13' span with concrete

13' span with concrete

13' span with concrete

(OP)
Hey, I have some concerns with regards to a 13 foot span over a seasonal creek, that I intend to bridge with concrete.

My concerns are, the bridge I'm building is 60-70% longer then the bridge it's being designed from, and of course one my kids getting hurt from driving over a ton of collapsing concrete in a lawn tractor. I uploaded a PDF of the basic design.  I guess the question that is most pressing is the thickness, 13 feet span 42" wide, how thick does the slab need to be.

Thanks for any help.
bg

RE: 13' span with concrete

Folks here are going to be very hesitant to help you.  

RE: 13' span with concrete

Sorry dude, but you need to obtain the services of a structural engineer. This isn't something that can be designed over the internet.
But if you want to combine the engineering and consruction into one package, call your local precast concrete facility.  They (they have engineers on call)can design something like that, cast it in their yard and deliver it to your location.

RE: 13' span with concrete

(OP)
humm... why is that, ToadJones? if anyone had a question about how to fix or troubleshoot any problem with any kind car or truck, I would not hesitate to help.

Is it because of some inferred responsibility?  

RE: 13' span with concrete

(OP)
Thanks JedClampett, that's a really good idea.

bg

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