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RCED-84-165 1 (1984-07-19)

handle is hein.gao/gaobabnkq0001 and id is 1 raw text is: UNITED STATES GENERAL ACCOUNTING OFFICE WASHINGTON, D C 20548 0.,1M1)14T JULY 19, 1984 I IV I t,r B-215618 The Honorable Don J. Pease House of Representatives 124699 Dear Mr. Pease: Subject: Use of Cathodic Protection to Combat Corrosion of Bridge Decks (GAO/RCED-84-165) At your request, we are providing you information on the pro- tection of reinforced concrete bridge roadway surfaces (decks) and the Federal Highway Administration's (FHWA's) efforts to promote a corrosion prevention technology known as cathodic protection, which uses a continuous electrical current to combat corrosion of the reinforcing steel in concrete bridge decks. As agreed with your office, we focused our review on obtaining and providing information on (1) FHWA views on cathodic protection, (2) research efforts undertaken, and (3) FHWA efforts to encourage the use of cathodic protection. FHWA believes that the use of cathodic protection on re- inforced concrete bridge decks can save billions of dollars. Since 1973, FHWA has spent about $1.5 million on research and development of cathodic protection. In addition, FHWA, during the past 9 years, has provided educational, financial, and technical assistance to states and local highway agencies participating in the cathodic protection demonstration project. OBJECTIVES, SCOPE, AND METHODOLOGY To respond to your request to obtain FHWA's views of cathodic protection, actions taken to encourage or require its use by states, and the extent of research done, we reviewed FHWA reports on cathodic protection, pertinent regulations, state evaluations of individual projects, and other related documents. We also dis- cussed cathodic protection with responsible FHWA headquarters officials. We contacted state highway officials in California, the first state to use cathodic protection on bridges, and Ohio, which has several current demonstration projects. We did not (9q7IL tt(3278 (342758)

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