Greenwood #2

Greenwood #2 is an earth dam located in Valley County, Montana, built in 1970. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height27 ft
Built197056 years ago

Dam profile

NID height · 27 ft
27 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

27 ft tall and 300 ft long, taller than 59% 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 Greenwood #2

The primary purpose of Greenwood #2 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Jack Greenwood (private). It impounds the Tr-dogie Creek near Poplar.

The dam stands 27 feet tall and stretches 300 feet across, has a maximum storage capacity of 103 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, 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.

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

Location

StateMontana
CountyValley
Nearest CityPoplar
River/StreamTr-dogie Creek
Coordinates48.10850, -106.53110

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length300 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage103 acre-ft
Max Storage103 acre-ft
Normal Storage49 acre-ft
Drainage Area0 sq mi
Max Discharge100 cfs

Ownership & Safety

PurposeRecreation
OwnerJack Greenwood
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT02542
Federal IDMT02542
More InfoState Dam Safety Program