Harms Dam

Harms Dam is an earth dam located in Roberts County, South Dakota, built in 2011. It carries a Low hazard potential classification.

About Harms Dam

The primary purpose of Harms Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Pyllis Harms (private). It impounds the North Fork Whetstone-tr.

The dam stands 27 feet tall and stretches 220 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 43 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2011, 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
CountyRoberts
River/StreamNorth Fork Whetstone-tr
Coordinates45.34822, -96.71181

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length220 ft
Year Completed2011 (15 years old)

Storage & Hydraulics

NID Storage43 acre-ft
Max Storage43 acre-ft
Normal Storage20 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge540 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerPyllis Harms
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDSD02675
Federal IDSD02675
More InfoState Dam Safety Program

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