| Download | - View final version: Water mains break data on different pipe materials for 1992 and 1993 (PDF, 934 KiB)
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| DOI | Resolve DOI: https://doi.org/10.4224/40003996 |
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| Author | Search for: Rajani, Balvant1; Search for: McDonald, Shelley1 |
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| Affiliation | - National Research Council Canada. NRC Institute for Research in Construction
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| Format | Text, Technical Report |
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| Physical description | 16 p. |
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| Abstract | This report presents data collected on water main breaks during 1992 and 1993 from 21 Canadian cities. The work was carried out under a project titled "Gathering of data on different types of pipes used in water distribution systems".
The data were analyzed with regard to the type of pipe material and proportional representation of the particular material in the total water distribution system in any one city.
Current data indicate that the most prevalent water main pipe material in place is cast iron, representing 50% of the total water distribution network. The average break rate of cast iron pipe is 35.9 breaks/100 km/year. Ductile iron pipe constitutes 24% of the network and has an average break rate of 9.5 breaks/100 km/year. Asbestos-cement pipe constitutes 12% of the networks with a corresponding average break rate of 5.8 breaks/100 km/year. PVC pipe represents 10% of the inventory and has an average 0.7 breaks/100 km/year.
Other factors such as age of pipe in each water main break, soil bedding, backfill materials, ground water conditions, climate or installation and operational factors can influence the water main break rate, but these were not considered in the survey. |
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| Publication date | 1995-08-01 |
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| Publisher | National Research Council Canada |
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| Series | |
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| Note | Prepared for Uni-Bell PVC Pipe Association |
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| Language | English |
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| Peer reviewed | No |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 48eb8351-7631-4145-b466-dd5134b9670a |
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| Record created | 2026-03-05 |
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| Record modified | 2026-03-05 |
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