Westside
Westside is an earth dam located in Campbell County, Wyoming, built in 2012. It carries a High hazard potential classification and has a fair condition assessment.
About Westside
The primary purpose of Westside is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Btu Western Resources Inc (private). It impounds the Porcupine Creek near Bnsf Railroad.
The dam stands 23 feet tall and stretches 1,300 feet across, creates a reservoir covering 47 acres, has a maximum storage capacity of 575 acre-feet, and collects water from a drainage area of 56 square miles. Completed in 2012, the structure is relatively new.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 06/13/2022.
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 | Campbell |
| Nearest City | Bnsf Railroad |
| River/Stream | Porcupine Creek |
| Coordinates | 43.59330, -105.37730 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 1,300 ft |
| Year Completed | 2012 (14 years old) |
Storage & Hydraulics
| NID Storage | 575 acre-ft |
| Max Storage | 575 acre-ft |
| Normal Storage | 260 acre-ft |
| Surface Area | 47 acres |
| Drainage Area | 56 sq mi |
| Max Discharge | 3,789 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | BTU WESTERN RESOURCES INC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 06/13/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WY02505 |
| Federal ID | WY02505 |
| More Info | State Dam Safety Program |