Sinlahekin Dam No 1
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Washington |
| County | Okanogan |
| Nearest City | Loomis |
| River/Stream | Sinlahekin Creek |
| Coordinates | 48.73743, -119.66973 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Length | 180 ft |
| Year Completed | 1949 (77 years old) |
Storage & Hydraulics
| NID Storage | 333 acre-ft |
| Max Storage | 333 acre-ft |
| Normal Storage | 175 acre-ft |
| Surface Area | 83 acres |
| Drainage Area | 64 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | WA DFW |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/19/2016 |
| Emergency Action Plan | Yes |