Cathodic Protection of Historic Bridges

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					              Cathodic
           Protection of
          Historic Bridges
           technology helps preserve legacies on the oregon Coast Highway


                     
				
DOCUMENT INFO
Description: McCullough's bridges were masterpieces of art deco architecture carefully matched to stunning natural settings, and most included his trademark reinforced concrete arch spans.1-3 In 1936, a project funded by the Public Works Administration completed the last of five major bridges on the route, allowing the remaining ferries between the Columbia River and the California border to be taken out of service. ODOT procedures During a typical ODOT cathodic protection project, work begins with the erection of access platforms and containment structures built to comply with SSPC Guide 6, Class 1A standards.4 The containment structures are enclosures with negative air pressure ventilation systems that maintain internal air movement, temperature, and relative humidity while filtering exhaust air to minimize the release of dust particles.
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