Irwin Dam

Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateSouth Dakota
CountyTripp
Nearest CityNONE
River/StreamWHITE RIVER OFF STREAM
Coordinates43.30833, -99.59666

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length1,400 ft
Year Completed1938 (88 years old)

Storage & Hydraulics

NID Storage684 acre-ft
Max Storage315 acre-ft
Normal Storage684 acre-ft
Surface Area45 acres
Drainage Area17 sq mi
Max Discharge1,946 cfs

Ownership & Safety

PurposeRecreation
OwnerDON MANSCHEIM
Owner TypePrivate
Hazard ClassificationLow
Last Inspection05/09/1990
Emergency Action PlanNot Required

Identifiers

NID IDSD00543
Federal IDSD00543
More InfoState Dam Safety Program

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