Franklinville Bridge #31 Replacement

All 65 tons (59 tonnes) of truss and floor framing members including floor beams, stringers, connections and gusset plates were hot-dip galvanized. All members were strategically sized so that they would singly fit into the galvanizer's zinc kettle.

...the bridge specification was changed from one corrosion prevention system to hot-dip galvanizing.

Due to excellent communication among the galvanizer, fabricator, and the DOT, the bridge specification was changed from one corrosion prevention system to hot-dip galvanizing. First, the DOT did not want any holes in the tubular structures. Once galvanized, the galvanizer had to fill the holes with weld at the plant. This process produced a smooth and consistent finish. A second requirement was that any holes for installation purposes be re-tapped prior to shipping.

But probably the most important requirement was that the columns and arms be shipped in matching pairs so that the contractor could unload the pieces immediately adjacent to where they were to be installed. Because of this communication, not one piece required any additional work or touch-up during installation.