PATTISON STATE PARK - WI00127-3334
Dam Name: PATTISON STATE PARK
State: WI
Downstream Hazard Potential: S
Incident Type: Failure
Incident Date: 06/17/2018
Incident Driver: Hydrologic/Flooding
Incident Mechanism 1: Debris Clogging
Incident Mechanism 2Erosion
Incident Mechanism 3Overtopping
Incident IDWI00127-3334
Incident DescriptionLeft embankment overtopped & failed, significant debris & tree buildup in spillway due to high flows
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
Fatalities (Number)0
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)
Response
Volume released at failure (ac-ft)
Additional Remarks or Updates
Owner TypeL
Dam TypePGRE
Primary Purpose(s)R
EAPY
Dam Height20 ft
Max Storage (ac-ft)340.00
Surface Area (acres)27.00
Year Completed1931
NID NumberWI00127
River NameBLACK
Latitude46.5356
Longitude-92.1208
Year Modified
Regulatory Agency(ies)WIDNR
Incident Time
Incident Duration
Incident Report ProducedUnknown
Information SourcesWI DNR
