I know that Geneva Welding in Geneva Nebr. has been making pivot bridges for at least 10 years. He ships all over the US to pivot dealers. It looks like the span goes to 40 feet that he makes, just by judging from what I see setting on the lot. He keeps 1 or 2 men constantly busy welding so they must work and be priced fair I assume. My description of his bridges are as follows. They are appox. 3 ft wide. Two appox. 3-4 inch pipe are laid parallel with a pipe on each end holding to the desired width. Then he builds an arch over the top I think, raising to maybe 24 inches at the peak of the arch on the longest spans. Then he uses the same 3 or 4 inch pipe to weld steps every 12 to 16 inches apart up the span. I am not sure how they are kept in place from water that would flow over the ditch in a big rain. Maybe nothing as they would have to be quite heavy. Need more info. ? IMHHHHHHHHHHHHHHO |