John R. Doutt Upground Reservoir
John R. Doutt Upground Reservoir is an earth dam located in Delaware County, Ohio, built in 2014. It carries a High hazard potential classification and has a fair condition assessment.
About John R. Doutt Upground Reservoir
The primary purpose of John R. Doutt Upground Reservoir 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 Columbus (local government). It impounds the Ottawa Creek - Offstream near Prospect (upstream).
The dam stands 46 feet tall and stretches 25,930 feet across, creates a reservoir covering 842 acres, has a maximum storage capacity of 32,028 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2014, the structure is relatively new.
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 10/27/2023.
At 46 feet, this dam is taller than 91% of dams nationwide.
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 | Delaware |
| Nearest City | Prospect (upstream) |
| River/Stream | Ottawa Creek - Offstream |
| Coordinates | 40.39528, -83.23333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 25,930 ft |
| Year Completed | 2014 (12 years old) |
Storage & Hydraulics
| NID Storage | 32,028 acre-ft |
| Max Storage | 32,028 acre-ft |
| Normal Storage | 27,794 acre-ft |
| Surface Area | 842 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 82 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Columbus |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/27/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH03191 |
| Federal ID | OH03191 |
| More Info | State Dam Safety Program |