While I certainly can't say anything for the economy of long distance shipping of giant concrete pylons, I can confirm they do get trucked around a lot in the D

While I certainly can't say anything for the economy of long distance shipping of giant concrete pylons, I can confirm they do get trucked around a lot in the Dallas area. The overpass ribs are basically hooked to a small truck attached to the cab with a small truck on the other far end. Again, dunno if it's feasible over long distance, but it's certainly done. (Though Texas has a certain affinity to overpasses that borders on the pathological, fun as they are to bike over...)