LAKE HIDDENWOOD DAM - SD00750-3253
Incident ID SD00750-3253
Dam Name LAKE HIDDENWOOD DAM
Downstream Hazard Potential L
State SD
Incident Date 05/18/2018
Incident Type Failure
Incident Driver Hydrologic/flooding
Incident Mechanism 1 Overtopping
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 Bridges, Roads
Economic Damages (in $) Unknown
Volume released at failure (ac-ft)
Response post failure site visit by staff from SD Dam Safety and owner staff, owner closed recreation area associated with the dam
Additional Remarks or Updates low hazard dam so was not required to have an EAP, also no habitable structures in the downstream flood plain, bridge across the dam's spillway and gravel road across the crest were washed out, also some flash flooding of downstream cropland
Incident Time
Incident Duration
Incident Report Produced No
Information Sources SD DENR
Owner Type S
Dam Type RE
Primary Purpose(s) R
EAP NR
Year Completed 1926
Year Modified 0
Dam Height 27 ft
Max Storage (ac-ft) 474 ac-ft
Surface Area (acres) 27 acres
River Name TR MISSOURI
Latitude 0
Longitude 0
Regulatory Agency(ies) SD DENR
NID Number SD00750
Attachments
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