Mcdonald
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Montana |
| County | Lake |
| Nearest City | Moiese |
| River/Stream | Post Creek |
| Coordinates | 47.42380, -113.99260 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 47 ft |
| Dam Height | 47 ft |
| Dam Length | 1,495 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 8,645 acre-ft |
| Max Storage | 8,645 acre-ft |
| Normal Storage | 8,225 acre-ft |
| Surface Area | 188 acres |
| Drainage Area | 21 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Emergency Action Plan | Yes |