|
Incident ID |
CO00542-2091 |
|
Dam Name |
MODEL |
|
Downstream Hazard Potential |
L |
|
State |
CO |
|
Incident Date |
08/08/2013 |
|
Incident Type |
Failure |
|
Incident Driver |
Seepage/internal Erosion |
|
Incident Mechanism 1 |
Piping |
|
Incident Mechanism 2 |
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Incident Mechanism 3 |
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|
Incident Description |
Embankment failure due to erosion piping. An 8-ft-square erosion pipe formed in the embankment, draining the reservoir but not fully breaching the dam. |
|
Named Hydrologic Event |
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EAP Enacted (Y/N) due to Incident |
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|
Fatalities (Number) |
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|
Number of People Evacuated |
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Number of Habitable Structures Evacuated |
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Number of Habitable Structures Flooded |
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|
Other Infrastructure Impacts |
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|
Economic Damages (in $) |
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Volume released at failure (ac-ft) |
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|
Response |
|
|
Additional Remarks or Updates |
The failure went unnoticed due to it's remote location and other incidents happening at about the same time. The date of the actual failure is estimated. |
|
Incident Time |
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Incident Duration |
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Incident Report Produced |
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Information Sources |
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|
Owner Type |
|
|
Dam Type |
RE |
|
Primary Purpose(s) |
IP |
|
EAP |
NR |
|
Year Completed |
1921 |
|
Year Modified |
0 |
|
Dam Height |
39 ft |
|
Max Storage (ac-ft) |
29943 ac-ft |
|
Surface Area (acres) |
420 acres |
|
River Name |
BLACK HILLS ARROYO-TR |
|
Latitude |
37.3283 |
|
Longitude |
-104.389 |
|
Regulatory Agency(ies) |
DWR |
|
NID Number |
CO00542 |
|
Attachments |
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