Mckelvey Lake Dam
Mckelvey Lake Dam is a concrete dam located in Mahoning County, Ohio, built in 1926. It carries a High hazard potential classification and has a fair condition assessment.
About Mckelvey Lake Dam
The primary purpose of Mckelvey Lake Dam 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 Youngstown Land Conservancy (public utility). It impounds the Dry Run near Haselton.
The dam stands 77 feet tall and stretches 450 feet across, has a maximum storage capacity of 4,108 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1926, 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. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 03/21/2023.
At 77 feet, this dam is taller than 97% of all dams in the United States.
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 | Mahoning |
| Nearest City | Haselton |
| River/Stream | Dry Run |
| Coordinates | 41.10500, -80.59444 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 77 ft |
| Dam Height | 77 ft |
| Dam Length | 450 ft |
| Year Completed | 1926 (100 years old) |
Storage & Hydraulics
| NID Storage | 4,108 acre-ft |
| Max Storage | 4,108 acre-ft |
| Normal Storage | 2,230 acre-ft |
| Drainage Area | 8 sq mi |
| Max Discharge | 9,400 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Youngstown Land Conservancy |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 03/21/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00628 |
| Federal ID | OH00628 |
| More Info | State Dam Safety Program |