i need to vehicle build a bidge over a creek span between 28 and 32 ft. What is the cheepest solution?

Answer 1

HEY Give us a little help here. Where in this wide world are you? What are the soil conditions on the opposing creek banks? What are the elevations of the banks in relation to the highest level of the creek? What types of building materials are available? What labor force are you going to use? If this is a vehicular bridge, what size vehicles, hauling how much? etc.
Your best bet would probably be a concrete bridge. This would require cranes, and skilled labor. You might also use a timber style bridge if wood is plentiful in your area. If you have steep stable banks, elevated well above the creeks flood level: You could build a cable span bridge fairly cheaply.
Any way you go, you are going to spend enough money to justify hiring an engineer. An accurate survey, and soil analysis, would be helpful.

Answer 2

This makes absolutely no sense at all... how do you "vehicle build a bridge"?

Assuming you asking about building a vehicle bridge, your best bet is whatever using whatever materials are avaliable locally... timber if it's wood, stone or rock if that's the alternative.... Concrete works the best, but it's heavy and you may not have access to cement.

Answer 3

I have seen old railroad flat cars used for this. might be fairly cheap, but 32' is a pretty long span without engineer's input.