Incident ID |
WI00371-3336 |
Dam Name |
COON CREEK 23 |
Downstream Hazard Potential |
L |
State |
WI |
Incident Date |
08/29/2018 |
Incident Type |
Failure |
Incident Driver |
Hydrologic/flooding |
Incident Mechanism 1 |
Abutment Failure |
Incident Mechanism 2 |
Erosion |
Incident Mechanism 3 |
|
Incident Description |
High flows resulted in breach and failure of auxiliary spillway and abutment |
Named Hydrologic Event |
|
EAP Enacted (Y/N) due to Incident |
Yes |
Fatalities (Number) |
0 |
Number of People Evacuated |
0 |
Number of Habitable Structures Evacuated |
0 |
Number of Habitable Structures Flooded |
0 |
Other Infrastructure Impacts |
Bridges, Roads |
Economic Damages (in $) |
|
Volume released at failure (ac-ft) |
|
Response |
|
Additional Remarks or Updates |
Bridges, roads &culverts, farmstead outbuildings, sheds, private drives, cattle, fencing, equipment, RVs
Abandoned house (rarely used when visiting property) knocked off foundation d/s of one of Coon Creek Dams. Report: http://www.co.monroe.wi.us/departments/land-conservation/ Activated EAP next morning after overnight failure |
Incident Time |
|
Incident Duration |
1 day |
Incident Report Produced |
Yes |
Information Sources |
WI DNR |
Owner Type |
L |
Dam Type |
RE |
Primary Purpose(s) |
CD |
EAP |
N |
Year Completed |
1961 |
Year Modified |
0 |
Dam Height |
39 ft |
Max Storage (ac-ft) |
95 ac-ft |
Surface Area (acres) |
0 acres |
River Name |
TR.RULLANDS COULEE CR |
Latitude |
43.743 |
Longitude |
-90.8418 |
Regulatory Agency(ies) |
WIDNR |
NID Number |
WI00371 |
Attachments |
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