Sully 2

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateSouth Dakota
CountyTodd
Nearest CityOkreek
River/StreamOak Creek -TR
Coordinates43.36775, -100.40898

Physical Characteristics

Dam TypeEarth
NID Height29 ft
Dam Height29 ft
Dam Length496 ft
Year Completed1935 (91 years old)

Storage & Hydraulics

NID Storage328 acre-ft
Max Storage328 acre-ft
Normal Storage279 acre-ft
Surface Area18 acres
Drainage Area1 sq mi
Max Discharge1,904 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerBIA
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection04/20/2022
Emergency Action PlanYes

Identifiers

NID IDSD02562
Federal IDSD02562
More InfoState Dam Safety Program

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