Ward Ball
Ward Ball is an earth dam located in Sublette County, Wyoming, built in 1965. It carries a Low hazard potential classification and has a fair condition assessment.
About Ward Ball
The primary purpose of Ward Ball is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Boulder Irrigation District (private). It impounds the Ward Ball Draw near Hwy 191.
The dam stands 22 feet tall and stretches 950 feet across, creates a reservoir covering 53 acres, and has a maximum storage capacity of 528 acre-feet. Completed in 1965, 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 06/03/2024.
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Location
| State | Wyoming |
| County | Sublette |
| Nearest City | Hwy 191 |
| River/Stream | Ward Ball Draw |
| Coordinates | 42.72694, -109.70083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 950 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 528 acre-ft |
| Max Storage | 528 acre-ft |
| Normal Storage | 315 acre-ft |
| Surface Area | 53 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BOULDER IRRIGATION DISTRICT |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/03/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01221 |
| Federal ID | WY01221 |
| More Info | State Dam Safety Program |