Pond 4 (dam 2a)

Significant HazardFair ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountySweetwater
Nearest CityGREEN RIVER
River/StreamSTEVENS DRAW
Coordinates41.73240, -109.66720

Physical Characteristics

Dam TypeEarth
NID Height39 ft
Dam Height27 ft
Dam Length750 ft
Year Completed1992 (34 years old)

Storage & Hydraulics

NID Storage4,612 acre-ft
Max Storage4,612 acre-ft
Normal Storage4,612 acre-ft
Surface Area239 acres
Drainage Area4 sq mi
Max Discharge1,850 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeTailings
OwnerCINER WYOMING LLC
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection06/05/2025
Emergency Action PlanNot Required

Identifiers

NID IDWY02046
Federal IDWY02046
More InfoState Dam Safety Program

Nearby Dams

Pond 4 (dam 2b) 0.2 mi Significant Pond 4 (dam 2) 0.4 mi Significant No. 3 Tailings 0.9 mi Low Tailings Pond No. 1 1.3 mi Low Pond 2 (dam A) 1.7 mi Low Upper Delta (north Offset Dam & West Offset Dam) 1.7 mi High Sewage Lagoon 9.5 mi Low Fmc Granger Tailings Pond Phases 1e -1j 10.2 mi Low Texas Gulf Tailings (phase 1e & 1f Enl.) 10.6 mi Significant No. 5a 10.9 mi Low