• AWWA DSS65641
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AWWA DSS65641

  • Analysis of Total Cost of Large Diameter Pipe Failures
  • Conference Proceeding by American Water Works Association, 09/01/2007
  • Publisher: AWWA

$12.00$24.00


This powerpoint presentation analyzes total costs of large diameter pipe failures in the U.S. Large diameter is defined as 20-inch or larger. Estimated U.S. main breaks each year are300,000 for small diameter/year; and,500 for large diameter/year. Pipe materials studies included steel, cast iron, PVC, and PCCP. Direct and societal costs for each break are provided, along with a breakdown of direct cost categories and societal cost categories, Total Cost vs Time to Contain Break, Total Cost vs Total Gallons Lost, and Total Cost vs Pipe Diameter. Statistics are given for large breaks and water loss. A National Water Main BreakDatabase would help answer thequestion: Are main failures for particularmaterials and diametersoccurring at an increasingrate? Recommendations include: Target Large Mains in Urban Areas andConsider Future Routing/Feed Options; Review the Valves in These Areas; Target Large Mains Which are Critical toMaintaining System Pressure; and, Target Specific Mains for Inspection,Renewal, or Replacement That Have aDocumented National History of Failure. Includes figures.

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