Forgotton

Forgotton is an earth dam located in Big Horn County, Montana, built in 1955. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height15 ft
Built195571 years ago

Dam profile

NID height · 15 ft
15 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

15 ft tall and 75 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 Forgotton

The primary purpose of Forgotton 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 Scott Land & Livestock Co (private). It impounds the Middle Fork Tullock Creek near Bighorn.

The dam stands 15 feet tall and stretches 75 feet across, and has a maximum storage capacity of 50 acre-feet. Completed in 1955, 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 CityBighorn
River/StreamMiddle Fork Tullock Creek
Coordinates45.63470, -107.17960

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length75 ft
Year Completed1955 (71 years old)

Storage & Hydraulics

NID Storage50 acre-ft
Max Storage50 acre-ft
Normal Storage26 acre-ft

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerScott Land & Livestock Co
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT03766
Federal IDMT03766
More InfoState Dam Safety Program