Sparrow Slough Dam

Sparrow Slough Dam is an earth dam located in Beaverhead County, Montana, built in 1985. It carries a Low hazard potential classification and has a fair condition assessment.

About Sparrow Slough Dam

The primary purpose of Sparrow Slough 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 Sparrow Slough.

The dam stands 14 feet tall and stretches 1,690 feet across, creates a reservoir covering 68 acres, has a maximum storage capacity of 378 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1985, the structure is 41 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. 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 08/28/2018.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyBeaverhead
River/StreamSparrow Slough
Coordinates44.62000, -111.79000

Physical Characteristics

Dam TypeEarth
NID Height14 ft
Dam Height11 ft
Dam Length1,690 ft
Year Completed1985 (41 years old)

Storage & Hydraulics

NID Storage378 acre-ft
Max Storage378 acre-ft
Normal Storage225 acre-ft
Surface Area68 acres
Drainage Area0 sq mi
Max Discharge34 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerUS FISH AND WILDLIFE SERVICE
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection08/28/2018
Emergency Action PlanNot Required

Identifiers

NID IDMT03825
Federal IDMT03825
More InfoState Dam Safety Program

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