National Performance of Dams Program
Full Incident Summary
Penstock Incident Summary
Incident ID
50
Incident Date
11/08/1993
Penstock Type
Initiating Event
Water Stop Failure
Dam Failure
Description
Failure Mode
Water Stop Leak
Effect
Rapid rise in piezometric levels in the embankment downstream of the intake, with plumes of muddy discharge from embankment drains.
Storage Lost
No
Fatalities
0
Remedial Action
Grouting of contraction joints and evaluation of other possible sources of leakage (penstocks and embankment).
Keywords
Penstock; Water Stops
Need More Information on Penstock Incidents?
Click Here
