Nine Mile
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Washington |
| County | Spokane |
| Nearest City | Suncrest Development |
| River/Stream | Spokane River |
| Coordinates | 47.77478, -117.54467 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 87 ft |
| Dam Height | 58 ft |
| Dam Length | 466 ft |
| Year Completed | 1908 (118 years old) |
Storage & Hydraulics
| NID Storage | 4,600 acre-ft |
| Normal Storage | 4,600 acre-ft |
| Surface Area | 440 acres |
| Drainage Area | 4,998 sq mi |
| Max Discharge | 60,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Avista Corporation |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/16/2022 |
| Emergency Action Plan | Yes |