Koa Dam No 1
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Washington |
| County | Lewis |
| Nearest City | Salkum |
| River/Stream | Tr-Mill Creek |
| Coordinates | 46.54932, -122.58488 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Length | 330 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 67 acre-ft |
| Max Storage | 67 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 162 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mhc Ltra Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |