IVANHOE - CO00682-3026


Incident ID CO00682-3026
Dam Name IVANHOE
Downstream Hazard Potential L
State CO
Incident Date 07/01/2014
Incident Type Non-failure
Incident Driver Seepage/internal Erosion
Incident Mechanism 1 Settlement
Incident Mechanism 2 Sinkhole
Incident Mechanism 3
Incident Description Excessive settlement and cracking on the upstream face over the outlet piping
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident Yes
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)
Volume released at failure (ac-ft)
Response
Additional Remarks or Updates Report of Excessive settlement and cracking on the upstream face over the outlet piping. Level 1 EAP activation. Site visit revealed outlet works failure. Infor to reservoir can be shut off, and has been, and resevroir was ordered lowered, 0-storage restriction ordered.
Incident Time
Incident Duration
Incident Report Produced
Information Sources CO DWR
Owner Type U
Dam Type RE
Primary Purpose(s) IS
EAP Y
Year Completed 1928
Year Modified 1971
Dam Height 17 ft
Max Storage (ac-ft) 1007 ac-ft
Surface Area (acres) 82 acres
River Name IVANHOE CREEK
Latitude 39.2717
Longitude -106.509
Regulatory Agency(ies) DWR
NID Number CO00682
Attachments