Halfway is an earth dam located in Big Horn County, Montana, built in 1956. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height18 ft
Built195670 years ago

Dam profile

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

18 ft tall and 140 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 Halfway

The primary purpose of Halfway 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 Flying V Cattle Co (private). It impounds the Tr-halfway Creek near Lodge Grass.

The dam stands 18 feet tall and stretches 140 feet across, and has a maximum storage capacity of 137 acre-feet. Completed in 1956, 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
CountyBig Horn
Nearest CityLodge Grass
River/StreamTr-halfway Creek
Coordinates45.16190, -107.35130

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length140 ft
Year Completed1956 (70 years old)

Storage & Hydraulics

NID Storage137 acre-ft
Max Storage137 acre-ft
Normal Storage65 acre-ft

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerFlying V Cattle Co
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT02060
Federal IDMT02060
More InfoState Dam Safety Program