Cygnet Wwt Lagoon
Cygnet Wwt Lagoon is an earth dam located in Wood County, Ohio, built in 1994. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Cygnet Wwt Lagoon
The primary purpose of Cygnet Wwt Lagoon is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Northwestern Water & Sewer District (local government). It impounds the Rocky Ford near Cygnet.
The dam stands 9 feet tall and stretches 3,446 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 132 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1994, the structure is 32 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/02/2024.
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Location
| State | Ohio |
| County | Wood |
| Nearest City | Cygnet |
| River/Stream | Rocky Ford |
| Coordinates | 41.24889, -83.63750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 3,446 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 132 acre-ft |
| Max Storage | 132 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 2 cfs |
Ownership & Safety
| Purpose | Tailings |
| Owner | Northwestern Water & Sewer District |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/02/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH02871 |
| Federal ID | OH02871 |
| More Info | State Dam Safety Program |