The Pennsylvania Dept. of Transportation's SR 3023 truss bridge has 222 tons (201 tonnes) of hot-dip galvanized floor beams, plate girders, bridge stringers, angles, plates, and large gussets. It is connected by over 26,000 nuts and bolts. The specification of hot-dip galvanized was the most practical corrosion prevention system due to the extensive number of pieces and the numerous edges associated with so many bolt holes and plate girders. Hot-dip galvanizing delivers outstanding performance necessary for this environment. The Little Conemaugh River, which flows underneath the bridge, has a potential for high water and even flooding. The hot-dip galvanized coating was able to withstand the required handling after galvanizing in pre-assembly and again at the job site. Coating thickness measurements of the zinc coating were above ASTM A 123 requirements, giving the steel exceptional protection from corrosion.