Chapter
Aug 10, 2023
Beavers, Birdwatchers, and a Critical Wastewater Force Main Can Coexist!
Authors: Emma Slater [email protected], Justin Hebner [email protected], and Josh Greenberg [email protected]Author Affiliations
Publication: Pipelines 2023
ABSTRACT
Metro Vancouver’s Sperling Avenue Forcemain cuts right through environmentally sensitive Burnaby Lake Park. The 533 mm diameter steel force main was installed in 1962 and is a critical piece of Metro Vancouver’s wastewater system. In 2020, Metro Vancouver issued an RFP for condition assessment of the force main and selected Pure Technologies to execute a high-resolution condition assessment. Prior to the project, no previous condition assessments had been completed; however, the force main suffered from point failures in the past. In 2021, an inspection of the force main was completed with a high-resolution, free-swimming inspection technology. Challenges associated with the inspection included limited flow control ability and mobilizing and working during the COVID-19 pandemic. Analysis of the inspection data identified defects, which Metro Vancouver decided to repair. In September 2022, repairs were completed, increasing Metro Vancouver’s confidence the force main can continue to successfully operate in its unique in situ conditions.
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REFERENCES
Ellison, D. (2019). Condition Assessment of Water Mains, Manual of Water Supply Practices - M77, American Water Works Association (AWWA), Denver, CO.
AWWA (American Water Works Association). (2004). Steel Pipe: A guide for design and installation, Standard M11. Fourth Edition. AWWA, Denver, CO.
Fitzgerald, J. H., III. (1968). Corrosion as a Primary Cause of Cast-Iron Main Breaks, AWWA Journal, Vol. 60(8), August 1968.
Information & Authors
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Published In
Pipelines 2023
Pages: 222 - 230
History
Published online: Aug 10, 2023
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ASCE Technical Topics:
- Bodies of water (by type)
- Construction engineering
- Construction management
- Data analysis
- Engineering fundamentals
- Engineering materials (by type)
- Environmental engineering
- Infrastructure
- Inspection
- Lakes
- Materials engineering
- Metals (material)
- Methodology (by type)
- Parks
- Pipeline systems
- Pipes
- Pressure pipes
- Rail transportation
- Recreation
- Research methods (by type)
- Steel
- Subways
- Transportation engineering
- Urban and regional development
- Wastewater management
- Water and water resources
- Water management
- Water treatment
Authors
Affiliations
P.Eng.
1Metro Vancouver, Burnaby, BC, Canada. Email: [email protected]
2Pure Technologies, a Xylem Brand, Mississauga, ON, Canada. Email: [email protected]
3Pure Technologies, a Xylem Brand, Mississauga, ON, Canada. 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.