OXBO FLOWAGE - WI12745-3418


Incident ID WI12745-3418
Dam Name OXBO FLOWAGE
Downstream Hazard Potential L
State WI
Incident Date 04/01/2019
Incident Type Failure
Incident Driver Seepage/internal Erosion
Incident Mechanism 1 Excessive/increased Seepage
Incident Mechanism 2 Piping
Incident Mechanism 3
Incident Description Water flowing into the embankment adjacent to the inlet of the horizontal CMP of water control structure. Water flowing through and underneath of the CMP. 10 days after initial observation, embankment was completely breached.
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 None
Economic Damages (in $) None
Volume released at failure (ac-ft)
Response Owners activitated EAP and closely monitored the site. Barricaded and signed to prevent entry to public.
Additional Remarks or Updates Remote area of wildlife area so risk was low. Completed temporary repairs by Apr 11.
Incident Time
Incident Duration 10 days
Incident Report Produced No
Information Sources WI Dam Safety
Owner Type S
Dam Type RE
Primary Purpose(s) R
EAP Y
Year Completed 0
Year Modified 0
Dam Height 8 ft
Max Storage (ac-ft) 100 ac-ft
Surface Area (acres) 28 acres
River Name OXBO CREEK
Latitude 45.1701
Longitude -89.4056
Regulatory Agency(ies) WIDNR
NID Number WI12745
Attachments