PCCP Inspection and Remediation Methods

by Ergun Bakall, San Diego County Water Authority, Escondido, United States,
Michael T. Stift, San Diego County Water Authority, Escondido, United States,
Paul W. Johnson, San Diego County Water Authority, Escondido, United States,



Document Type: Proceeding Paper

Part of: Pipeline Infrastructure II

Abstract:

This paper presents detailed investigative procedures and methodology used to locate corroded Prestressed Concrete Cylinder Pipes (PCCP). It examines data collection by electronic devices, internal inspections, and external excavations. The purpose of the data collection is to create a data base that is used to determine which pipes have the highest probability of damage due to corrosion. This data base is also used as a reference to monitor future deterioration and to prioritize remediation measures. Updating of the data base is an ongoing annual program. This paper also discusses methods for extending the life of deteriorating PCCP.

Subject Headings: Concrete cylinder pipes | Concrete pipes | Prestressing | Prestressed concrete | Deterioration | Databases | Data collection

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