Evaluation of Rocky Point Viaduct Concrete Beam

摘要

This study was intended to determine why it was necessary to replace the RockyPoint Viaduct (1954-1994), on the Oregon coast south of Port Orford, after a period of service that was much shorter than that of many other reinforced concrete bridges on the Oregon coast; to identify construction practices that may have contributed to its early failure; and to identify evaluation methods that are most effective for characterizing bridge condition. A 14.3 m (47 foot) section of concrete Beam A1 and bridge deck between the north abutmen5t and pier 1 was removed from the seaward side of the Viaduct for evaluation of: (1) concrete properties; (2) reinforcing bar (rebar) corrosion; and (3) chloride migration in the concrete.