Shell Creek
High Hazard ConditionEmergency Action Plan: Yes
Location
| State | Wyoming |
| County | Big Horn |
| Nearest City | SHELL |
| River/Stream | SHELL CREEK |
| Coordinates | 44.51660, -107.41390 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 40 ft |
| Dam Length | 400 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 2,680 acre-ft |
| Max Storage | 2,680 acre-ft |
| Normal Storage | 1,950 acre-ft |
| Surface Area | 98 acres |
| Drainage Area | 24 sq mi |
| Max Discharge | 1,800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | SHELL VALLEY RESERVOIR COMPANY, INC |
| Owner Type | Private |
| Hazard Classification | High |
| Last Inspection | 10/01/2025 |
| Emergency Action Plan | Yes |