|
Incident ID |
MN00544-2850 |
|
Dam Name |
WILLOW RIVER |
|
Downstream Hazard Potential |
S |
|
State |
MN |
|
Incident Date |
07/13/2016 |
|
Incident Type |
Failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Overtopping |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Overtopping of dam due to over 7 inches of rain in less than 24 hours. Right earthen abutment failed. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
|
|
Number of Habitable Structures Evacuated |
|
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
|
|
Economic Damages (in $) |
|
|
Volume released at failure (ac-ft) |
|
|
Response |
|
|
Additional Remarks or Updates |
Voluntary evacuation. Access road to right abutment was washed out. |
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
|
|
Information Sources |
MNDNR |
|
Owner Type |
S |
|
Dam Type |
PG |
|
Primary Purpose(s) |
O |
|
EAP |
NR |
|
Year Completed |
1941 |
|
Year Modified |
2002 |
|
Dam Height |
26 ft |
|
Max Storage (ac-ft) |
672 ac-ft |
|
Surface Area (acres) |
84 acres |
|
River Name |
WILLOW RIVER |
|
Latitude |
46.3236 |
|
Longitude |
-92.8392 |
|
Regulatory Agency(ies) |
MNDNR WATERS |
|
NID Number |
MN00544 |
|
Attachments |
|
