O'farrell Dam No. 2

Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateSouth Dakota
CountyGrant
River/StreamTR-N. FORK WHETSTONE
Coordinates45.30059, -96.95483

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length400 ft
Year Completed2006 (20 years old)

Storage & Hydraulics

NID Storage65 acre-ft
Max Storage65 acre-ft
Normal Storage32 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
Max Discharge2,026 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerMARIE O'FARRELL
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDSD02587
Federal IDSD02587
More InfoState Dam Safety Program

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