Cathodic protection of culverts : field application and expert system

PDFTech ReportLA-99/324Project No. 97-1IMPCathodic protectionCulvertsLouisianaLouisiana Transportation Research CenterGarber, J. D.Smith, L. G.University of Southwestern Louisiana. Dept. of Chemical EngineeringCorrosion Control Inc.Louisiana Transportation Research CenterNTL-HIGHWAY/ROAD TRANSPORTATION-Construction and MaintenanceNTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and StructuresUS Transportation CollectionCoated metal culverts are used throughout the state of Louisiana. These culverts are susceptible to both internal and external corrosion once they are placed in the ground. It is simply a matter of time before all of the culverts in the state corrode through and failure occurs. An earlier study illustrated that applying cathodic protection might be an economically feasible method of protecting these culverts from both external and internal corrosion