Keystone

Keystone is an earth dam located in Carbon County, Wyoming, built in 1921. It carries a Low hazard potential classification and has a fair condition assessment.

About Keystone

The primary purpose of Keystone is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Condict Ranch, Llc (private). It impounds the South Brush Creek near Saratoga.

The dam stands 10 feet tall and stretches 570 feet across, creates a reservoir covering 27 acres, and has a maximum storage capacity of 343 acre-feet. Completed in 1921, the structure is over a century 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 08/01/2023.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyCarbon
Nearest CitySaratoga
River/StreamSouth Brush Creek
Coordinates41.34333, -106.35944

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length570 ft
Year Completed1921 (105 years old)

Storage & Hydraulics

NID Storage343 acre-ft
Max Storage343 acre-ft
Normal Storage172 acre-ft
Surface Area27 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerCONDICT RANCH, LLC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection08/01/2023
Emergency Action PlanNot Required

Identifiers

NID IDWY00349
Federal IDWY00349
More InfoState Dam Safety Program

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