Drew #1 is an earth dam located in Garfield County, Montana, built in 1966. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height20 ft
Built196660 years ago

Dam profile

NID height · 20 ft
20 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

20 ft tall and 304 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 Drew #1

The primary purpose of Drew #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 Drew Ranch Co (private). It impounds the Tr-sand Creek.

The dam stands 20 feet tall and stretches 304 feet across, has a maximum storage capacity of 117 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1966, 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
CountyGarfield
Nearest CityNone
River/StreamTr-sand Creek
Coordinates46.99890, -107.21180

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length304 ft
Year Completed1966 (60 years old)

Storage & Hydraulics

NID Storage117 acre-ft
Max Storage117 acre-ft
Normal Storage50 acre-ft
Drainage Area1 sq mi
Max Discharge260 cfs
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDMT01503
Federal IDMT01503
More InfoState Dam Safety Program