Manuel #1 is an earth dam located in Petroleum County, Montana, built in 1949. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height30 ft
Built194977 years ago

Dam profile

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

30 ft tall and 1,980 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 Manuel #1

The primary purpose of Manuel #1 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 Manuel Ranch Inc (private). It impounds the Tr-cat Creek.

The dam stands 30 feet tall and stretches 1,980 feet across, has a maximum storage capacity of 402 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1949, 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.

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Location

StateMontana
CountyPetroleum
Nearest CityNone
River/StreamTr-cat Creek
Coordinates47.10670, -108.15590

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length1,980 ft
Year Completed1949 (77 years old)

Storage & Hydraulics

NID Storage402 acre-ft
Max Storage402 acre-ft
Normal Storage206 acre-ft
Drainage Area2 sq mi

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerManuel Ranch Inc
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT02682
Federal IDMT02682
More InfoState Dam Safety Program