HIDDEN TIMBER - SD00040-3249
Incident ID SD00040-3249
Dam Name HIDDEN TIMBER
Downstream Hazard Potential L
State SD
Incident Date 03/23/2019
Incident Type Failure
Incident Driver Hydrologic/flooding
Incident Mechanism 1 Unknown
Incident Mechanism 2
Incident Mechanism 3
Incident Description
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident No
Fatalities (Number) 0
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $) Unknown
Volume released at failure (ac-ft)
Response post failure site visit by owner staff
Additional Remarks or Updates low hazard dam so was not required to have an EAP, also no habitable structures in the downstream flood plain, the primary incident mechanism was likely overtopping
Incident Time
Incident Duration
Incident Report Produced No
Information Sources SD DENR
Owner Type S
Dam Type RE
Primary Purpose(s) PR
EAP NR
Year Completed 1933
Year Modified 1959
Dam Height 18 ft
Max Storage (ac-ft) 824 ac-ft
Surface Area (acres) 32 acres
River Name ANTELOPE CREEK
Latitude 43.2317
Longitude -100.415
Regulatory Agency(ies) DENR
NID Number SD00040
Attachments
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