We have one that was moved in the '80 to it's present location at a park, crossing from one side of a pond to another. People rent it for weddings, no traffic across it other than foot traffic.
We have one about 10 miles from us, Bollinger Mill State Park. It's over a river that ran an old grain mill, pre-civil war, I think. Very interesting in the mill, they still have all the old machinery set up.