Gibson Dam
High HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Montana |
| County | Teton |
| Nearest City | SIMMS |
| River/Stream | NORTH FORK SUN RIVER |
| Coordinates | 47.60140, -112.76160 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 199 ft |
| Dam Height | 199 ft |
| Dam Length | 960 ft |
| Year Completed | 1929 (97 years old) |
Storage & Hydraulics
| NID Storage | 121,981 acre-ft |
| Max Storage | 121,981 acre-ft |
| Normal Storage | 99,059 acre-ft |
| Surface Area | 1,420 acres |
| Drainage Area | 575 sq mi |
| Max Discharge | 41,760 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 09/02/2021 |
| Emergency Action Plan | Yes |