Thorald Dam
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Washington |
| County | San Juan |
| River/Stream | Tr-Parks Bay |
| Coordinates | 48.56242, -122.97161 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Length | 400 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 98 acre-ft |
| Max Storage | 98 acre-ft |
| Normal Storage | 85 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 15 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | San Juan Preservation Trust |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |