Twin Forks (dawson)

Twin Forks (dawson) is an earth dam located in Dawson County, Montana, built in 1961. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height35 ft
Built196165 years ago

Dam profile

NID height · 35 ft
35 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

35 ft tall and 220 ft long, taller than 80% 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 Twin Forks (dawson)

The primary purpose of Twin Forks (dawson) is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Cedar Creek Grazing Assoc (private). It impounds the Tr-labell Ditch near Glendive.

The dam stands 35 feet tall and stretches 220 feet across, and has a maximum storage capacity of 218 acre-feet. Completed in 1961, 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.

At 35 feet, this dam is taller than 80% of dams nationwide.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

Location

StateMontana
CountyDawson
Nearest CityGlendive
River/StreamTr-labell Ditch
Coordinates46.89260, -104.58890

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length220 ft
Year Completed1961 (65 years old)

Storage & Hydraulics

NID Storage218 acre-ft
Max Storage218 acre-ft
Normal Storage124 acre-ft
Max Discharge952 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerCedar Creek Grazing Assoc
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT00638
Federal IDMT00638
More InfoState Dam Safety Program