LAKE ANN - CO00683-3028
Dam Name: LAKE ANN
State: CO
Downstream Hazard Potential: H
Incident Type: Non-Failure
Incident Date: 10/10/2014
Incident Driver: Seepage/Internal Erosion
Incident Mechanism 1: Sinkhole
Incident Mechanism 2
Incident Mechanism 3
Incident IDCO00683-3028
Incident DescriptionSinkhole in dam foundation upstream of embankment
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)
Response
Volume released at failure (ac-ft)
Additional Remarks or Updates
Owner TypeP
Dam TypeRE
Primary Purpose(s)IR
EAPY
Dam Height42 ft
Max Storage (ac-ft)562.00
Surface Area (acres)20.00
Year Completed1912
NID NumberCO00683
River NameWEST SOPRIS CREEK-OS
Latitude39.3033
Longitude-107.117
Year Modified
1953
Regulatory Agency(ies)DWR
Incident Time
Incident Duration
Incident Report Produced
Information SourcesCO DWR
