Lacreek #10 Dam

Lacreek #10 Dam is an earth dam located in Bennett County, South Dakota, built in 1934. It carries a Low hazard potential classification and has a fair condition assessment.

About Lacreek #10 Dam

The primary purpose of Lacreek #10 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 Us Fish And Wildlife Service (federal). It impounds the Lake Creek.

The dam stands 14 feet tall and stretches 900 feet across, creates a reservoir covering 946 acres, has a maximum storage capacity of 7,690 acre-feet, and collects water from a drainage area of 145 square miles. Completed in 1934, the structure is well-established, with more than 75 years of service.

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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/17/2019.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateSouth Dakota
CountyBennett
River/StreamLake Creek
Coordinates43.14500, -101.51667

Physical Characteristics

Dam TypeEarth
NID Height14 ft
Dam Height11 ft
Dam Length900 ft
Year Completed1934 (92 years old)

Storage & Hydraulics

NID Storage7,690 acre-ft
Max Storage7,690 acre-ft
Normal Storage3,020 acre-ft
Surface Area946 acres
Drainage Area145 sq mi
Max Discharge627 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerUS FISH AND WILDLIFE SERVICE
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection09/17/2019
Emergency Action PlanNot Required

Identifiers

NID IDSD01194
Federal IDSD01194
More InfoState Dam Safety Program

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