Hafner Duck Lake

Hafner Duck Lake is an earth dam located in Harding County, South Dakota, built in 1957. It carries a Low hazard potential classification.

About Hafner Duck Lake

The primary purpose of Hafner Duck Lake is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Lester Hafner (private). It impounds the Coal Bank Creek.

The dam stands 19 feet tall and stretches 700 feet across, and has a maximum storage capacity of 148 acre-feet. Completed in 1957, the structure is well into its service life at over 50 years old.

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
CountyHarding
Nearest CityNone
River/StreamCoal Bank Creek
Coordinates45.83785, -103.26034

Physical Characteristics

Dam TypeEarth
NID Height19 ft
Dam Height19 ft
Dam Length700 ft
Year Completed1957 (69 years old)

Storage & Hydraulics

NID Storage148 acre-ft
Max Storage148 acre-ft
Normal Storage117 acre-ft
Max Discharge1,050 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerLESTER HAFNER
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDSD00608
Federal IDSD00608
More InfoState Dam Safety Program

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