MONTGOMERY - CO00372-2092
Incident ID CO00372-2092
Dam Name MONTGOMERY
Downstream Hazard Potential H
State CO
Incident Date 06/05/2013
Incident Type Non-failure
Incident Driver Seepage/internal Erosion
Incident Mechanism 1 Excessive/increased Seepage
Incident Mechanism 2
Incident Mechanism 3
Incident Description New seepage (near 1 cfs) at toe of rockfill dam. Increased monitoring, performed failure modes analysis. It was hypothesized that it was melting ice from within the rockfill of this high altitude dam after an abnormally wet and cold spring.
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 $)
Volume released at failure (ac-ft)
Response
Additional Remarks or Updates
Incident Time
Incident Duration
Incident Report Produced
Information Sources
Owner Type L
Dam Type ER
Primary Purpose(s) S
EAP Y
Year Completed 1956
Year Modified 0
Dam Height 112 ft
Max Storage (ac-ft) 6100 ac-ft
Surface Area (acres) 95 acres
River Name MIDDLE FORK S. PLATTE
Latitude 39.3533
Longitude -106.074
Regulatory Agency(ies) DWR
NID Number CO00372
Attachments
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