Findlay Upground Reservoir No. 1
Findlay Upground Reservoir No. 1 is an earth dam located in Hancock County, Ohio, built in 1950. It carries a High hazard potential classification and has a fair condition assessment.
About Findlay Upground Reservoir No. 1
The primary purpose of Findlay Upground Reservoir No. 1 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Findlay (local government). It impounds the Blanchard River - Offstream near Findlay.
The dam stands 28 feet tall and stretches 10,893 feet across, creates a reservoir covering 188 acres, has a maximum storage capacity of 4,969 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/30/2019.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Ohio dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Ohio |
| County | Hancock |
| Nearest City | Findlay |
| River/Stream | Blanchard River - Offstream |
| Coordinates | 41.00833, -83.56556 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 10,893 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 4,969 acre-ft |
| Max Storage | 4,969 acre-ft |
| Normal Storage | 4,008 acre-ft |
| Surface Area | 188 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 108 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Findlay |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/30/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00758 |
| Federal ID | OH00758 |
| More Info | State Dam Safety Program |