A Practical measure to prevent frozen water service lines - the region of Ottawa-Carleton's experience

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Conference27th Annual CSCE Conference, Hydrotechnical Engineering Specialty Conference: 02 June 1999, Regina, SK, Canada
Pages421430; # of pages: 10
Subjectfrozen water service; frost depth; prediction; prevention; Water mains
AbstractThe problem of frozen water service lines in severe cold winter months can be costly to municipalities across Canada. During the 1993/1994 winter 2,745 water service lines were frozen in the Region of Ottawa-Carleton and the corresponding cost of thawing was approximately $2.2 million or $800 per service line. The Region has since implemented a procedure to minimize the number of frozen services and corresponding costs in the subsequent winters by sending alert notices to the residents advising them to let water run from a faucet. The procedure is based on frost depth prediction using Brown's formula and daily mean air temperature forecast. Moderate correlation between the number of frozen services and freezing index was found using the region's statistics of frozen services.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number43089
NPARC number20331338
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Record identifier45915b15-a389-4443-87c0-cfa5f7372f59
Record created2012-07-18
Record modified2016-05-09
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