BRISTOL HEAD #1 - CO00984-3170
Dam Name: BRISTOL HEAD #1
State: CO
Downstream Hazard Potential: L
Incident Type: Non-Failure
Incident Date: 07/04/2017
Incident Driver: Deterioration or Poor Condition
Incident Mechanism 1: Piping
Incident Mechanism 2Sinkhole
Incident Mechanism 3
Incident IDCO00984-3170
Incident DescriptionSmall seep pond below Santa Maria Reservoir with a relatively large outlet conduit. Conduit failed just behind the upstream valve and drained most of the reservoir through the conduit uncontrollably.
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentNo
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure ImpactsRoads
Economic Damages (in $)
Responsework with owner to remove valve and allow reservoir to drain full and stream to run through the conduit until such time as the outlet works can be removed and replaced
Volume released at failure (ac-ft)
Additional Remarks or UpdatesCurrently has zero storage restriction
Owner TypeP
Dam TypeRE
Primary Purpose(s)I
EAPNR
Dam Height15 ft
Max Storage (ac-ft)200.00
Surface Area (acres)16.00
Year Completed1921
NID NumberCO00984
River NameSEEPAGE CREEK
Latitude37.75
Longitude-107.04
Year Modified
Regulatory Agency(ies)DWR
Incident Time
Incident Duration
Incident Report ProducedNo
Information SourcesCO DWR
