Flandreau Dam

Flandreau Dam is a concrete dam located in Moody County, South Dakota. It carries a Low hazard potential classification.

About Flandreau Dam

The primary purpose of Flandreau Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Flandreau (local government). It impounds the Big Sioux near Flandreau.

The dam stands 11 feet tall and stretches 175 feet across, and has a maximum storage capacity of 60 acre-feet.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateSouth Dakota
CountyMoody
Nearest CityFlandreau
River/StreamBig Sioux
Coordinates44.05272, -96.59196

Physical Characteristics

Dam TypeConcrete
NID Height11 ft
Dam Height11 ft
Dam Length175 ft

Storage & Hydraulics

NID Storage60 acre-ft
Max Storage60 acre-ft
Normal Storage60 acre-ft

Ownership & Safety

PurposeRecreation
OwnerCity of Flandreau
Owner TypeLocal Government
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDSD02633
Federal IDSD02633
More InfoState Dam Safety Program

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