Pond No. 3

Pond No. 3 is an earth dam located in Sweetwater County, Wyoming, built in 1981. It carries a Low hazard potential classification and has a fair condition assessment.

About Pond No. 3

The primary purpose of Pond No. 3 is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Tata Chemicals North America (private). It impounds the Allied Draw, Tr Blacks Fork Ri near Green River.

The dam stands 37 feet tall and stretches 2,850 feet across, creates a reservoir covering 280 acres, has a maximum storage capacity of 2,975 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1981, the structure is 45 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 04/16/2024.

At 37 feet, this dam is taller than 84% of dams nationwide.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountySweetwater
Nearest CityGreen River
River/StreamAllied Draw, Tr Blacks Fork Ri
Coordinates41.58200, -109.74000

Physical Characteristics

Dam TypeEarth
NID Height37 ft
Dam Height37 ft
Dam Length2,850 ft
Year Completed1981 (45 years old)

Storage & Hydraulics

NID Storage2,975 acre-ft
Max Storage2,975 acre-ft
Normal Storage2,085 acre-ft
Surface Area280 acres
Drainage Area0 sq mi
Spillway TypeNone

Ownership & Safety

PurposeDebris Control
OwnerTATA CHEMICALS NORTH AMERICA
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection04/16/2024
Emergency Action PlanNot Required

Identifiers

NID IDWY01631
Federal IDWY01631
More InfoState Dam Safety Program

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