Big Sky Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Montana |
| County | Madison |
| Nearest City | GALLATIN GATEWAY |
| River/Stream | MIDDLE FK WEST FK GALLATIN RI |
| Coordinates | 45.28760, -111.39440 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 52 ft |
| Dam Height | 52 ft |
| Dam Length | 400 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 225 acre-ft |
| Max Storage | 225 acre-ft |
| Normal Storage | 113 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 1,331 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | BIG SKY OF MONTANA INC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/28/2020 |
| Emergency Action Plan | Yes |