Sea Horse Ranch Dike
Washington — Grays Harbor County — Tr-Gillis Slough
Location
| State | Washington |
| County | Grays Harbor |
| River | Tr-Gillis Slough |
| Coordinates | 47.04259, -124.04148 |
Physical Characteristics
| NID Height | 15 ft |
| Dam Height | — |
| Dam Length | 165 ft |
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Surface Area | 75 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | — |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 1961 |
| Primary Purpose | Other |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Grays Harbor Audobon Society |
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.