Johnson (toole)
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Toole |
| Nearest City | DEVON |
| River/Stream | TR-DUNKIRK COULEE |
| Coordinates | 48.49160, -111.58570 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 830 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 186 acre-ft |
| Max Storage | 186 acre-ft |
| Normal Storage | 95 acre-ft |
| Drainage Area | 6 sq mi |
| Max Discharge | 600 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CECIL S BENJAMIN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |