Sd Noname 70

Sd Noname 70 is an earth dam located in Haakon County, South Dakota, built in 1960. It carries a Low hazard potential classification.

About Sd Noname 70

The primary purpose of Sd Noname 70 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 Frank Halligan (private). It impounds the Grindstone Creek-tr.

The dam stands 18 feet tall and stretches 640 feet across, and has a maximum storage capacity of 137 acre-feet. Completed in 1960, 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
CountyHaakon
Nearest CityNone
River/StreamGrindstone Creek-tr
Coordinates44.10838, -101.70173

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length640 ft
Year Completed1960 (66 years old)

Storage & Hydraulics

NID Storage137 acre-ft
Max Storage137 acre-ft
Normal Storage72 acre-ft
Max Discharge1,875 cfs
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDSD00819
Federal IDSD00819
More InfoState Dam Safety Program

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