Chapter
Jul 28, 2022
Exposed Sewer and Water Main Stream Crossings—Finding and Fixing
Publication: Pipelines 2022
ABSTRACT
Citizens Energy Group (Citizens) is responsible for over 3,300 mi of sanitary sewers and 4,500 mi of water mains within its service areas. Both systems have a total of over 3,200 stream crossings and because of the minimal design cover depth at most crossings, typically 3–5 ft or less, many have become exposed due to erosion or changing flow characteristics of the stream. A three-tier inspection and remediation stream crossing program was developed, which resulted in a defined risk based program that inspects all stream crossings on a recurring schedule and identifies, prioritizes, and remediates the exposed crossings. The paper explains the program’s three tiers in greater detail, including how the recurring inspections are done, the evaluating/prioritizing exposed crossing procedure, and when/if/how remediation is done.
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REFERENCES
AACE (Association for the Advancement of Cost Engineering). (Rev August 7, 2020).
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Pipelines 2022
Pages: 155 - 160
History
Published online: Jul 28, 2022
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P.E.
1Citizens Energy Group, Indianapolis, IN. Email: [email protected]
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