Thaden Dam

Thaden Dam is an earth dam located in Grant County, South Dakota, built in 2018. It carries a Low hazard potential classification.

About Thaden Dam

The primary purpose of Thaden Dam 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 Gerald Thaden (private). It impounds the Whetstone-tr.

The dam stands 30 feet tall and stretches 194 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 19 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2018, the structure is relatively new.

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
CountyGrant
River/StreamWhetstone-tr
Coordinates45.25310, -96.91206

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length194 ft
Year Completed2018 (8 years old)

Storage & Hydraulics

NID Storage19 acre-ft
Max Storage19 acre-ft
Normal Storage6 acre-ft
Surface Area1 acres
Drainage Area0 sq mi
Max Discharge1,770 cfs
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDSD02666
Federal IDSD02666
More InfoState Dam Safety Program

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