Galvanized steel bridge KEALAKAHA

trussroadprecast

Bridge length: Acrow supplied 220 ft. of 12 ft. wide bridge frame – no deck Bridge width: The Acrow bridge was 12 ft. 8½ inches between the inside trusses Bridge surface: The contractor build a launching platform that matched up to the Acrow bridge frame that had two “steel rails” that the concrete beam would travel on top of over the Acrow bridge – much like a railroad would travel on rails Bridge erection: The bridge frame was cantilever launched Bridge design: (1) Designed to carry 358,000 lbs. of concrete beam and launch /rail equipment (2) Built to move laterally on Hillman rollers to act like a “Gantry crane” allowing the beam to be pulled across the gap and then picked up lowered into place by Strand Jacks Bridge finish: – All major components galvanized to AASHTO M111 – ASTM A 123 – All bolts are hot dipped galvanized – All pins are electro galvanized