Alderman #2 is an earth dam located in Powder River County, Montana, built in 1945. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height30 ft
Built194581 years ago

Dam profile

NID height · 30 ft
30 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

30 ft tall and 200 ft long, taller than 68% 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 Alderman #2

The primary purpose of Alderman #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 Charles Alderman Et Al (private). It impounds the Tr-fiftyfour Creek near Miles City.

The dam stands 30 feet tall and stretches 200 feet across, and has a maximum storage capacity of 77 acre-feet. Completed in 1945, 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.

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

Location

StateMontana
CountyPowder River
Nearest CityMiles City
River/StreamTr-fiftyfour Creek
Coordinates45.54980, -105.70430

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length200 ft
Year Completed1945 (81 years old)

Storage & Hydraulics

NID Storage77 acre-ft
Max Storage77 acre-ft
Normal Storage40 acre-ft

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerCharles Alderman Et Al
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT01829
Federal IDMT01829
More InfoState Dam Safety Program