Kjerstad Dam No. 2

Kjerstad Dam No. 2 is an earth dam located in Pennington County, South Dakota, built in 1941. It carries a High hazard potential classification and has a poor condition assessment.

About Kjerstad Dam No. 2

The primary purpose of Kjerstad Dam No. 2 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 Leonard Kjerstad (private). It impounds the Bad River-tr.

The dam stands 14 feet tall and stretches 335 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 57 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1941, the structure is well-established, with more than 75 years of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 12/19/2023.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The South Dakota dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardPoor ConditionEmergency Action Plan: Yes

Location

StateSouth Dakota
CountyPennington
Nearest CityNone
River/StreamBad River-tr
Coordinates44.06501, -102.04043

Physical Characteristics

Dam TypeEarth
NID Height14 ft
Dam Height14 ft
Dam Length335 ft
Year Completed1941 (85 years old)

Storage & Hydraulics

NID Storage57 acre-ft
Max Storage57 acre-ft
Normal Storage22 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
Max Discharge2,490 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerLEONARD KJERSTAD
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection12/19/2023
Emergency Action PlanYes

Identifiers

NID IDSD02140
Federal IDSD02140
More InfoState Dam Safety Program

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