Lima Upground Reservoir
Lima Upground Reservoir is an earth dam located in Allen County, Ohio, built in 1903. It carries a Significant hazard potential classification and has a poor condition assessment.
About Lima Upground Reservoir
The primary purpose of Lima Upground Reservoir is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Johnny Appleseed Metro Park (local government). It impounds the Ottawa River - Offstream near Lima.
The dam stands 25 feet tall and stretches 8,080 feet across, creates a reservoir covering 85 acres, has a maximum storage capacity of 1,573 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1903, the structure is over a century 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/27/2022.
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Location
| State | Ohio |
| County | Allen |
| Nearest City | Lima |
| River/Stream | Ottawa River - Offstream |
| Coordinates | 40.75333, -84.04778 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 8,080 ft |
| Year Completed | 1903 (123 years old) |
Storage & Hydraulics
| NID Storage | 1,573 acre-ft |
| Max Storage | 1,573 acre-ft |
| Normal Storage | 1,057 acre-ft |
| Surface Area | 85 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 35 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Johnny Appleseed Metro Park |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 04/27/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00528 |
| Federal ID | OH00528 |
| More Info | State Dam Safety Program |