National Performance of Dams Program
Full Incident Summary
Penstock Incident Summary
Incident ID
43
Incident Date
03/05/1993
Penstock Type
Initiating Event
Needle Valve Failure
Dam Failure
Description
Failure Mode
Needle valve housing failure
Effect
Temporary loss of generation, minor embankment erosion, and minor oil pollution.
Storage Lost
No
Fatalities
0
Remedial Action
The powerhouse repairs were completed on June 1, 1996, at a cost of $4,500,000.
Keywords
Penstock; Needle Valve
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