Castor (choteau)

Castor (choteau) is an earth dam located in Chouteau County, Montana, built in 1960. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height20 ft
Built196066 years ago

Dam profile

NID height · 20 ft
20 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

20 ft tall and 175 ft long. 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 Castor (choteau)

The primary purpose of Castor (choteau) is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Romain Land and Cattle (private). It impounds the Tr-sheep Coulee near Loma.

The dam stands 20 feet tall and stretches 175 feet across, and has a maximum storage capacity of 51 acre-feet. Completed in 1960, the structure is well into its service life at over 50 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.

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Location

StateMontana
CountyChouteau
Nearest CityLoma
River/StreamTr-sheep Coulee
Coordinates48.12460, -110.72730

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length175 ft
Year Completed1960 (66 years old)

Storage & Hydraulics

NID Storage51 acre-ft
Max Storage51 acre-ft
Normal Storage26 acre-ft

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerRomain Land and Cattle
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT03515
Federal IDMT03515
More InfoState Dam Safety Program