Milles Lake Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Washington |
| County | Okanogan |
| Nearest City | Twisp |
| River/Stream | Unnamed Tr. -Twisp R. |
| Coordinates | 48.39233, -120.18463 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 6 ft |
| Dam Length | 250 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 29 acre-ft |
| Max Storage | 29 acre-ft |
| Normal Storage | 22 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 172 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | WA DFW |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/24/2023 |
| Emergency Action Plan | Yes |