Hog Park Main Dam
Hog Park Main Dam is an earth dam located in Carbon County, Wyoming, built in 1986. It carries a High hazard potential classification.
About Hog Park Main Dam
The primary purpose of Hog Park Main Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Cheyenne Board Of Public Utilities (local government). It impounds the Hog Park Creek near Encampment.
The dam stands 118 feet tall and stretches 1,100 feet across, creates a reservoir covering 598 acres, has a maximum storage capacity of 24,987 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1986, the structure is 40 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 07/08/2021.
At 118 feet, this dam is taller than 98% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Wyoming dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wyoming |
| County | Carbon |
| Nearest City | Encampment |
| River/Stream | Hog Park Creek |
| Coordinates | 41.03410, -106.86090 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 118 ft |
| Dam Height | 118 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 24,987 acre-ft |
| Max Storage | 24,987 acre-ft |
| Normal Storage | 22,656 acre-ft |
| Surface Area | 598 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 1,400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF CHEYENNE BOARD OF PUBLIC UTILITIES |
| Owner Type | Local Government |
| Hazard Classification | High |
| Last Inspection | 07/08/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WY00381 |
| Federal ID | WY00381 |
| More Info | State Dam Safety Program |