Willow Creek
High HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Montana |
| County | Big Horn |
| Nearest City | Lodge Grass |
| River/Stream | Lodge Grass Creek - TR |
| Coordinates | 45.16333, -107.59639 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 136 ft |
| Dam Height | 113 ft |
| Dam Length | 2,508 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 31,710 acre-ft |
| Max Storage | 31,710 acre-ft |
| Normal Storage | 23,260 acre-ft |
| Surface Area | 652 acres |
| Drainage Area | 11 sq mi |
| Max Discharge | 22,380 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 01/06/2021 |
| Emergency Action Plan | Yes |