WITTENBERG - WI00057-3419
Dam Name: WITTENBERG
State: WI
Downstream Hazard Potential: L
Incident Type: Non-Failure
Incident Date: 04/19/2019
Incident Driver: Hydrologic/Flooding
Incident Mechanism 1: Overtopping
Incident Mechanism 2Erosion
Incident Mechanism 3Accident or Misoperation
Incident IDWI00057-3419
Incident DescriptionOvertopping led to erosion and partial embankment failure, particularly near concrete spillway and cutoff wall. Additional seepage observed. Delay in operating gates may have contributed.
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentNo
Fatalities (Number)0
Number of People Evacuated0
Number of Habitable Structures Evacuated0
Number of Habitable Structures Flooded0
Other Infrastructure ImpactsRoads, Bridges, Dams Downstream
Economic Damages (in $)$1 to $100,000
ResponseDam safety staff notified by local enforcement and DNR conservation warden. Contacted owner to monitor, provided FYI to downstream residents. Owner advised to further activate EAP if conditions deteriorated further.
Volume released at failure (ac-ft)
Additional Remarks or UpdatesRepairs are nearly complete which included construction of an auxiliary spillway, gate stem repairs, embankment repairs, and minor concrete repairs.
Owner TypeP
Dam TypePGRE
Primary Purpose(s)R
EAPY
Dam Height22 ft
Max Storage (ac-ft)360.00
Surface Area (acres)40.00
Year Completed1885
NID NumberWI00057
River NameMIDDLE BRANCH EMBARRASS
Latitude44.8411
Longitude-89.1575
Year Modified
1908
Regulatory Agency(ies)WIDNR
Incident Time
Incident Duration1 day
Incident Report ProducedNo
Information SourcesWI Dam Safety
