Dyan
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Chouteau |
| Nearest City | VIRGELLE |
| River/Stream | TR-SPRING COULEE |
| Coordinates | 48.07100, -110.36590 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 600 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 93 acre-ft |
| Max Storage | 93 acre-ft |
| Normal Storage | 48 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | STATE OF MONTANA, D.N.R.C., T.L.M.D. |
| Owner Type | State |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |