Hensleigh #2

Hensleigh #2 is an earth dam located in Garfield County, Montana, built in 1950. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height18 ft
Built195076 years ago

Dam profile

NID height · 18 ft
18 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

18 ft tall and 100 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 Hensleigh #2

The primary purpose of Hensleigh #2 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 A R Hays (private). It impounds the Tr-oliver Coulee near Van Norman.

The dam stands 18 feet tall and stretches 100 feet across, has a maximum storage capacity of 79 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.

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
CountyGarfield
Nearest CityVan Norman
River/StreamTr-oliver Coulee
Coordinates47.36420, -106.82540

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length100 ft
Year Completed1950 (76 years old)

Storage & Hydraulics

NID Storage79 acre-ft
Max Storage79 acre-ft
Normal Storage37 acre-ft
Drainage Area2 sq mi
Max Discharge125 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerA R Hays
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT02355
Federal IDMT02355
More InfoState Dam Safety Program