National Performance of Dams Program
Full Incident Summary
Penstock Incident Summary
Incident ID
31
Incident Date
05/17/1989
Penstock Type
Initiating Event
Crane
Dam Failure
Description
Failure Mode
Penstock punctured by the impact of a falling crane
Effect
Holes punched in penstocks led to curtailment of power generation.
Storage Lost
No
Fatalities
0
Remedial Action
Removed crane remnant, patched holes, and repaired other appurtenant equipment as necessary.
Keywords
Penstock; Crane
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