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Aug 30, 2024
Fast Action to a Small Leak Avoids Possible Catastrophic Failure of a Large-Diameter Transmission Main
Authors: Kristen A. Peterson [email protected], David J. Tanzi [email protected], Jan Chwiedosiuk [email protected], and Rasko Ojdrovic [email protected]Author Affiliations
Publication: Pipelines 2024
ABSTRACT
In January 2023, MWCo detected a leak on a 48-in. PCCP within a 4.38-mi long transmission main that conveys potable water from MWCo’s 60 MGD CJO WTP to their distribution system. The leak was detected within an existing easement adjacent to a major highway in the Township of Edison, NJ. In order to assess the cause and extent of this leak, MWCo shutdown the pipeline for an emergency repair and used this as an opportunity to perform a more detailed condition assessment of a portion of this transmission main. This opportunistic inspection consisted of a visual, sounding, and electromagnetic inspection of approximately 5,500 LF of the pipeline to evaluate distress and recommend pipes for repair. Based on these results and recommendations, MWCo elected to repair approximately 1,655 LF of the pipeline using CFRP. This paper presents the importance of the efficient application of specialty inspection, analysis, design of repairs, and implementation of these repairs. This proactive, comprehensive condition assessment and repair approach prevented possible catastrophic failure and should prevent future leaks and maintain the reliability of this transmission main for years to come.
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Published online: Aug 30, 2024
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ASCE Technical Topics:
- Analysis (by type)
- Construction engineering
- Construction management
- Construction methods
- Disaster risk management
- Disasters and hazards
- Electric power
- Energy engineering
- Engineering fundamentals
- Failure analysis
- Infrastructure
- Inspection
- Pipe leakage
- Pipeline management
- Pipeline systems
- Pipelines
- Power transmission
- Rehabilitation
Authors
Affiliations
1Senior Consulting Engineer, Simpson Gumpertz & Heger, Inc. Email: [email protected]
2Senior Vice President, CDM Smith, Inc. Email: [email protected]
3Director of Distribution, Middlesex Water Company. Email: [email protected]
4Senior Principal, Simpson Gumpertz & Heger, Inc. Email: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.