LAKE REDSTONE - WI00707-2853

Incident ID WI00707-2853
Downstream Hazard Potential H
State WI
Incident Date 12/07/2015
Incident Type Non-failure
Incident Driver Structural Stability
Incident Mechanism 1 Cracking
Incident Mechanism 2
Incident Mechanism 3
Incident Description
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)
Volume released at failure (ac-ft)
Additional Remarks or Updates Rec'd call from local resident about fracture in bedrock at vertical face at principal spillway (see photos). Appears that boulder could break off face. No immediate concerns to dam noted. Recommended Sauk Cnty continue to monitor and will need to reinspect if/when boulder breaks off. See follow-up inspection report. NRCS did conductivity resistance testing in channel from lake to spillway (still awaiting results).
Incident Time
Incident Duration
Incident Report Produced
Information Sources WI DNR
Owner Type L
Dam Type PGRE
Primary Purpose(s) R
Year Completed 1967
Year Modified 0
Dam Height 50 ft
Max Storage (ac-ft) 15200 ac-ft
Surface Area (acres) 612 acres
River Name BIG CREEK
Latitude 43.5867
Longitude -90.0871
Regulatory Agency(ies) WIDNR
NID Number WI00707