Prioritization of Ten Embankment Dams According to Physical Deficiencies
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 127, Issue 4
Abstract
Ten embankment dams managed by the Massachusetts Department of Environmental Management Office of Dam Safety have been prioritized according to their physical deficiencies. Based upon visual inspection reports by several independent engineers engaged by the Department of Environmental Management and using a computer program that automates the risk indexing procedure, the 10 dams have been assigned a risk index (or priority ranking) number that identifies potential deficiencies in the physical condition of each structure and provides an evaluation of the overall importance of these deficiencies. Comparisons of the computed total risk indices for all dams in an inventory provides a basis for prioritizing future maintenance and repair actions for that inventory. Examination of the risk indices for each physical condition at a single dam can also give an indication as to which deficiencies may be the most significant. This paper will assist dam safety engineers in evaluating the potential benefits of the application of risk indexing to dams within their inventory. A companion paper presents the theoretical basis for prioritizations presented herein.
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References
1.
Andersen, G. R., Chouinard, L. E., Bouvier, C., and Back, W. E. (1999). “Ranking procedure on maintenance tasks for the monitoring of embankment dams.”J. Geotech. and Geoenvir. Engrg., ASCE, 125(4), 247–259.
2.
Andersen, G. R., Chouinard, L. E., Hover, W. H., and Lox, C. (2001). “Risk indexing tool to assist in prioritizing improvements to embankment dams.”J. Geotech. and Geoenvir. Engrg., ASCE, 127(4), 325–334.
3.
Federal Emergency Management Agency. ( 1998). Federal guidelines for dam safety: Hazard potential classification systems for dams, National Dam Safety Program, Interagency Committee on Dam Safety, Washington, D.C.
4.
USCOLD Subcommittee on Dam Incidents and Accidents. ( 1988). Lessons from dam incidents. USA-II, ASCE, New York.
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Received: Feb 3, 2000
Published online: Apr 1, 2001
Published in print: Apr 2001
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