|
Incident ID |
MN00111-2647 |
|
Dam Name |
SOUTH MOUND CREEK POOL |
|
Downstream Hazard Potential |
L |
|
State |
MN |
|
Incident Date |
06/14/2014 |
|
Incident Type |
Failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Overtopping |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Flood overtopped dam and right embankment (emergency spillway) failed. Wooden dock floated loose and partially blocked principal spillway. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
1 |
|
Other Infrastructure Impacts |
Bridges |
|
Economic Damages (in $) |
|
|
Volume released at failure (ac-ft) |
200 acre-feet ac-ft |
|
Response |
DNR owed Dam. Operators notified DNR Dam Safety quickly. |
|
Additional Remarks or Updates |
Grouted riprap on emergency spillway. Dam also failed in 1938. Downstream home was flooded but may have flooded without dam failure. Two downstream farmers claim dam breach damaged them. |
|
Incident Time |
Between 9 pm and midnight |
|
Incident Duration |
<12 hours |
|
Incident Report Produced |
Yes |
|
Information Sources |
State park staff; MN DNR Dam Safety files. |
|
Owner Type |
S |
|
Dam Type |
PG |
|
Primary Purpose(s) |
R |
|
EAP |
NR |
|
Year Completed |
1940 |
|
Year Modified |
1940 |
|
Dam Height |
24 ft |
|
Max Storage (ac-ft) |
235 ac-ft |
|
Surface Area (acres) |
19 acres |
|
River Name |
MOUND CREEK |
|
Latitude |
43.7145 |
|
Longitude |
-96.1779 |
|
Regulatory Agency(ies) |
MNDNR WATERS |
|
NID Number |
MN00111 |
|
Attachments |
|
