|
Incident ID |
WI00373-3337 |
|
Dam Name |
COON CREEK 21 |
|
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 |
1963 |
|
Year Modified |
0 |
|
Dam Height |
46 ft |
|
Max Storage (ac-ft) |
271 ac-ft |
|
Surface Area (acres) |
2 acres |
|
River Name |
TR RULLAND COULEE CREEK |
|
Latitude |
43.7314 |
|
Longitude |
-90.8419 |
|
Regulatory Agency(ies) |
WIDNR |
|
NID Number |
WI00373 |
|
Attachments |
|
