Jewett Wwt Lagoon
Jewett Wwt Lagoon is an earth dam located in Harrison County, Ohio, built in 1999. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Jewett Wwt Lagoon
The primary purpose of Jewett Wwt Lagoon is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Village Of Jewett (local government). It impounds the Conotton Creek - Offstream near Village Of Jewett.
The dam stands 12 feet tall and stretches 2,880 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 74 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1999, the structure is 27 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 05/14/2025.
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Location
| State | Ohio |
| County | Harrison |
| Nearest City | Village Of Jewett |
| River/Stream | Conotton Creek - Offstream |
| Coordinates | 40.37056, -81.01389 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 2,880 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 74 acre-ft |
| Max Storage | 74 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 14 cfs |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Village of Jewett |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/14/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH02978 |
| Federal ID | OH02978 |
| More Info | State Dam Safety Program |