Dionysus Dam
Washington — Franklin County
Location
| State | Washington |
| County | Franklin |
| Coordinates | 46.44878, -119.23529 |
Physical Characteristics
| NID Height | 18 ft |
| Dam Height | — |
| Dam Length | 2,284 ft |
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Surface Area | 7 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | July 23, 2019 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1973 |
| Primary Purpose | Irrigation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | North Columbia River Road Pasco WA, LLC |
| Other Name | Dionysus Dam |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.