Middle Creek Lake (cascade)

Middle Creek Lake (cascade) is an earth dam located in Cascade County, Montana, built in 1950. It carries a Significant hazard potential classification.

About Middle Creek Lake (cascade)

The primary purpose of Middle Creek Lake (cascade) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Sieben Livestock Co (private). It impounds the Middle Creek(e.f.hound Creek) near Great Falls.

The dam stands 30 feet tall and stretches 285 feet across, has a maximum storage capacity of 584 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.

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Significant Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyCascade
Nearest CityGreat Falls
River/StreamMiddle Creek(e.f.hound Creek)
Coordinates46.93940, -111.67990

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length285 ft
Year Completed1950 (76 years old)

Storage & Hydraulics

NID Storage584 acre-ft
Max Storage584 acre-ft
Normal Storage338 acre-ft
Drainage Area5 sq mi
Max Discharge400 cfs

Ownership & Safety

PurposeIrrigation
OwnerSIEBEN LIVESTOCK CO
Owner TypePrivate
Hazard ClassificationSignificant
Emergency Action PlanNot Required

Identifiers

NID IDMT00201
Federal IDMT00201
More InfoState Dam Safety Program

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