Betty is an earth dam located in Crook County, Wyoming, built in 1957. It carries a Low hazard potential classification and has a fair condition assessment.

Hazard potentialLowFailure would cause limited damage
ConditionFair2nd of 4 ratings
Emergency action planNot reported
Last inspection05/13/2021
Height31 ft
Built195769 years ago

Dam profile

NID height · 31 ft
31 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

31 ft tall and 528 ft long, taller than 72% 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 Betty

The primary purpose of Betty 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 Warbonnet Ranch, Inc (private). It impounds the Johnson Creek near Hulett.

The dam stands 31 feet tall and stretches 528 feet across, creates a reservoir covering 10 acres, and has a maximum storage capacity of 154 acre-feet. Completed in 1957, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 05/13/2021.

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Location

StateWyoming
CountyCrook
Nearest CityHulett
River/StreamJohnson Creek
Coordinates44.19220, -104.94380

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height31 ft
Dam Length528 ft
Year Completed1957 (69 years old)

Storage & Hydraulics

NID Storage154 acre-ft
Max Storage154 acre-ft
Normal Storage93 acre-ft
Surface Area10 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerWarbonnet Ranch, Inc
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection05/13/2021
Emergency Action PlanNot Required

Identifiers

NID IDWY00984
Federal IDWY00984
More InfoState Dam Safety Program