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Incident ID |
MN00604-1861 |
|
Dam Name |
THOMSON DAM NO 5-1/2 |
|
Downstream Hazard Potential |
H |
|
State |
MN |
|
Incident Date |
06/20/2012 |
|
Incident Type |
Failure |
|
Incident Driver |
Unknown |
|
Incident Mechanism 1 |
Under Investigation |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
The right embankment of the headrace canal (called Forbay Lake) leading to the hydro plant failed. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
Yes |
|
Fatalities (Number) |
|
|
Number of People Evacuated |
160 |
|
Number of Habitable Structures Evacuated |
|
|
Number of Habitable Structures Flooded |
|
|
Other Infrastructure Impacts |
Roads |
|
Economic Damages (in $) |
|
|
Volume released at failure (ac-ft) |
|
|
Response |
|
|
Additional Remarks or Updates |
Hydropower plant no longer able to be fed water, MN Highway 210 failed |
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
|
|
Information Sources |
|
|
Owner Type |
X |
|
Dam Type |
PG |
|
Primary Purpose(s) |
HR |
|
EAP |
Y |
|
Year Completed |
1907 |
|
Year Modified |
0 |
|
Dam Height |
23 ft |
|
Max Storage (ac-ft) |
4352 ac-ft |
|
Surface Area (acres) |
375 acres |
|
River Name |
ST LOUIS RIVER |
|
Latitude |
46.665 |
|
Longitude |
-92.4067 |
|
Regulatory Agency(ies) |
|
|
NID Number |
MN00604 |
|
Attachments |
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