Pond 4 (dam 2)
Pond 4 (dam 2) is an earth dam located in Sweetwater County, Wyoming, built in 1992. It carries a Significant hazard potential classification.
About Pond 4 (dam 2)
The primary purpose of Pond 4 (dam 2) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Ciner Wyoming Llc (private). It impounds the Stevens Draw near Green River.
The dam stands 110 feet tall and stretches 1,840 feet across, creates a reservoir covering 239 acres, has a storage capacity of 4,612 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1992, the structure is 34 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 06/05/2025.
At 110 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | Wyoming |
| County | Sweetwater |
| Nearest City | Green River |
| River/Stream | Stevens Draw |
| Coordinates | 41.73010, -109.66050 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 110 ft |
| Dam Height | 70 ft |
| Dam Length | 1,840 ft |
| Year Completed | 1992 (34 years old) |
Storage & Hydraulics
| NID Storage | 4,612 acre-ft |
| Normal Storage | 4,612 acre-ft |
| Surface Area | 239 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 1,850 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CINER WYOMING LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Last Inspection | 06/05/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WY02045 |
| Federal ID | WY02045 |
| More Info | State Dam Safety Program |