Road Across The River

[kulby]

Hi! I would like to ask any idea regarding construction of a road across the river for about 15meters long? I will be using RC pipe as a culvert.

 

[Ron]

Your question is too general to be answered here. You need to provide more detail and ask specific questions. Constructing a road for (presumably) 15 miles along a river requires many, many considerations. It is not a simple task and requires planning, engineering, environmental and construction expertise.

 

[JNieman]

I would pay an engineer to design it.

 

[PEinc]

15 meters or 15 miles? 15 meters isn't a road. Design of a 15 mile long road along a river should require more than "an engineer."

http://www.PeirceEngineering.com

 

[kulby]

I'm sorry folks but what I mean is 15meters long.

 

[kulby]

I don't have any idea what to call that but a concrete slab across the river for transportation purposes.

 

[IRstuff]

You said "along" which means parallel to. You're actually talking about "across" and it's more properly called a "bridge." Surely, there's a word for "bridge" in the Philippines?

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[kulby]

Yeah, may be a bridge-like structure designed to allow vehicle to cross over the waterway while allowing adequate passage for the water. Because I'm refering to a culvert type structure.

 

[robyengIT]

may be similar to this

 

[LittleInch]

There are many variables which need to be considered, including width and depth of river at present, flow rate / velocity, what the range of flow is ( storm, rainy season / flood), ground type, height and width of road, type of vehicles / weight/ quantity, environmental restrictions etc etc. A few more details or a picture would help....

At its most basic this is simply a matter of lowering in your culvert pipe or pipes and backfilling around it quicker than the water washes it away.

You might want to explore or contact these people

http://bridgestoprosperity.org/

whilst they are mainly suspension type foot bridges, they have lots of experience in more rural environments.

One option I saw was to use open ended containers as culverts set in concrete.

Something like this

or this

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[thaidavid40]

We have even cut the ends off of shipping containers, set them side by side, and set them in concrete to make multiple box culverts. Top them with a reinforced slab and you are good to go with a site-built, impromptu bridge crossing. Or use smaller culverts, and let the high water levels during floods wash over the top of the roadway, as in a low-water crossing.
Dave

Thaidavid

 

[Lomarandil]

I think the general theme here is: there are lots of structural solutions to a culvert type bridge structure. The most important and critical part of the process is understanding the hydraulics.

This is on a larger scale than your project, but a recent reminder of what can go wrong if the hydraulics aren't understood:

http://www.eng-tips.com/viewthread.cfm?qid=391562