Miller No. 1

Miller No. 1 is an earth dam located in Platte County, Wyoming, built in 1949. It carries a Low hazard potential classification and has a poor condition assessment.

Hazard potentialLowFailure would cause limited damage
ConditionPoor3rd of 4 · remedial action needed
Emergency action planNot reported
Last inspection06/29/2021
Height34 ft
Built194977 years ago

Dam profile

NID height · 34 ft
34 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

34 ft tall and 260 ft long, taller than 78% 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 Miller No. 1

The primary purpose of Miller No. 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Steve Dilts Family Limited Partnership (private). It impounds the North Chugwater Creek near Chugwater.

The dam stands 34 feet tall and stretches 260 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 56 acre-feet. 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/29/2021.

At 34 feet, this dam is taller than 78% of dams nationwide.

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Location

StateWyoming
CountyPlatte
Nearest CityChugwater
River/StreamNorth Chugwater Creek
Coordinates41.68110, -105.20300

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height33 ft
Dam Length260 ft
Year Completed1949 (77 years old)

Storage & Hydraulics

NID Storage56 acre-ft
Max Storage56 acre-ft
Normal Storage35 acre-ft
Surface Area4 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerSteve Dilts Family Limited Partnership
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection06/29/2021
Emergency Action PlanNot Required

Identifiers

NID IDWY00158
Federal IDWY00158
More InfoState Dam Safety Program