Reservoir Lake

Reservoir Lake is an earth dam located in Beaverhead County, Montana, built in 1920. It carries a Low hazard potential classification.

About Reservoir Lake

The primary purpose of Reservoir Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Usda Fs (federal). It impounds the Bloody Dick Cr near Dillon, Mt.

The dam stands 9 feet tall and stretches 315 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 355 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1920, the structure is over a century 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. The most recent inspection on record was 09/29/2015. That was over 10 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyBeaverhead
Nearest CityDillon, Mt
River/StreamBloody Dick Cr
Coordinates45.12281, -113.45221

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Height9 ft
Dam Length315 ft
Year Completed1920 (106 years old)

Storage & Hydraulics

NID Storage355 acre-ft
Max Storage355 acre-ft
Normal Storage44 acre-ft
Surface Area40 acres
Drainage Area1 sq mi
Max Discharge218 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerUSDA FS
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection09/29/2015
Emergency Action PlanNot Required

Identifiers

NID IDMT00897
Federal IDMT00897
More InfoState Dam Safety Program

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