Mccarter West Dam

Mccarter West Dam is an earth dam located in Toole County, Montana, built in 1953. It carries a Significant hazard potential classification.

Hazard potentialSignificantFailure could cause major damage
ConditionNot assessed
Emergency action planNot reported
Last inspection08/28/1980
Height28 ft
Built195373 years ago

Dam profile

NID height · 28 ft
28 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

28 ft tall and 2,020 ft long, taller than 62% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Mccarter West Dam

The primary purpose of Mccarter West Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Lawrence a Hemmer (private). It impounds the Tr-willow Creek near Galata.

The dam stands 28 feet tall and stretches 2,020 feet across, creates a reservoir covering 960 acres, has a maximum storage capacity of 7,000 acre-feet, and collects water from a drainage area of 463 square miles. Completed in 1953, the structure is well into its service life at over 50 years old.

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. The most recent inspection on record was 08/28/1980. That was over 46 years ago.

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Location

StateMontana
CountyToole
Nearest CityGalata
River/StreamTr-willow Creek
Coordinates48.51000, -111.41080

Physical Characteristics

Dam TypeEarth
NID Height28 ft
Dam Height28 ft
Dam Length2,020 ft
Year Completed1953 (73 years old)

Storage & Hydraulics

NID Storage7,000 acre-ft
Max Storage7,000 acre-ft
Normal Storage1,400 acre-ft
Surface Area960 acres
Drainage Area463 sq mi
Max Discharge730 cfs

Ownership & Safety

PurposeIrrigation
OwnerLawrence a Hemmer
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot assessed
Last Inspection08/28/1980
Emergency Action PlanNot Required

Identifiers

NID IDMT00397
Federal IDMT00397
More InfoState Dam Safety Program