Chapter
Aug 30, 2024
The 48-in. PCCP Condition Assessment That Grew
Authors: Benjamin C. McCray, P.E., M.ASCE [email protected], and Panduranga Kuruva, P.E. [email protected]Author Affiliations
Publication: Pipelines 2024
ABSTRACT
In 2020, the City of Houston (City) authorized Lockwood, Andrews, and Newnam, Inc. (LAN) to perform a preliminary engineering report (PER) for 3,900 linear feet of 48-in. prestressed concrete cylinder pipe (PCCP) primarily due to a METRO rail crossing and previous failure. In reviewing records, it became clear that there were other portions of the pipeline that had high potential for impact to the pipeline’s condition. The PER summarized these risks, and after consideration from the City, the assessment limits were increased to approximately 18,400 LF. A final design project was developed and is currently under construction with completion expected within the next 6−8 months. This paper will go through the original project extent, the additional risk areas identified, the impact the change in length caused, and the final package bid under construction. In the end, the original budgetary costs for the project (3,900 LF scope) construction costs are expected to be met with a few increases for professional services coming from other available funding sources.
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REFERENCES
AWWA (American Waterworks Association). (January 1, 2015). Prestressed Concrete Pressure Pipe, Steel-Cylinder Type, ANSI/AWWA Standard C301-14. AWWA, Denver, CO.
AWWA (American Waterworks Association). (May 1, 2015). Design of Prestressed Conceret Cylinder Pipe, ANSI/AWWA Standard C304-14. AWWA, Denver, CO.
City of Houston, Houston Public Works. (November 27, 2023). Infrastructure Design Manual (IDM). Houston Permitting Center, Houston, TX.
Google Maps. “Current and Historical Imagery along Pipeline Route, Houston, TX” Accessed 2021.
Information & Authors
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Published online: Aug 30, 2024
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ASCE Technical Topics:
- Business management
- Concrete cylinder pipes
- Concrete pipes
- Construction costs
- Construction engineering
- Construction management
- Financial management
- Infrastructure
- Pipeline systems
- Pipes
- Practice and Profession
- Project management
- Public transportation
- Rail transportation
- Subways
- Transportation engineering
- Urban and regional development
- Urban areas
Authors
Affiliations
1Senior Project Manager, Lockwood, Andrews and Newnam, Inc., Houston, TX. Email: [email protected]
2Supervising Engineer, Capital Projects, City of Houston, Houston, TX. Email: [email protected]
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