J Janssen #1
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Powder River |
| Nearest City | MIZPAH |
| River/Stream | HAY CREEK |
| Coordinates | 45.72060, -105.46830 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 480 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 151 acre-ft |
| Max Storage | 151 acre-ft |
| Normal Storage | 151 acre-ft |
| Drainage Area | 15 sq mi |
| Max Discharge | 500 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | JOHN JANSSEN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |