Big V
Big V is an earth dam located in Natrona County, Wyoming, built in 1940. It carries a Low hazard potential classification and has a fair condition assessment.
About Big V
The primary purpose of Big V is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Antelope Springs Ranch Co (private). It impounds the Lone Tree Draw Trib Dead Horse near Sussex.
The dam stands 22 feet tall and stretches 1,050 feet across, creates a reservoir covering 361 acres, has a maximum storage capacity of 131 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1940, the structure is well-established, with more than 75 years of service.
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 05/27/2021.
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Location
| State | Wyoming |
| County | Natrona |
| Nearest City | Sussex |
| River/Stream | Lone Tree Draw Trib Dead Horse |
| Coordinates | 43.38640, -106.59380 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 1,050 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 131 acre-ft |
| Max Storage | 131 acre-ft |
| Normal Storage | 131 acre-ft |
| Surface Area | 361 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 353 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | ANTELOPE SPRINGS RANCH CO |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/27/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02094 |
| Federal ID | WY02094 |
| More Info | State Dam Safety Program |