Thelma #1
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Park |
| Nearest City | EMIGRANT |
| River/Stream | TR-YELLOWSTONE RIVER |
| Coordinates | 45.24240, -110.86020 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 211 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 106 acre-ft |
| Max Storage | 106 acre-ft |
| Normal Storage | 63 acre-ft |
| Max Discharge | 120 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | THELMA D. GRAY |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |