Alum Creek Upground Reservoir No. 2
Alum Creek Upground Reservoir No. 2 is an earth dam located in Delaware County, Ohio, built in 2004. It carries a High hazard potential classification and has a fair condition assessment.
About Alum Creek Upground Reservoir No. 2
The primary purpose of Alum Creek Upground Reservoir No. 2 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 Del-co Water Company, Inc. (public utility). It impounds the Alum Creek - Off Stream near Lewis Center.
The dam stands 36 feet tall and stretches 7,140 feet across, creates a reservoir covering 52 acres, and has a maximum storage capacity of 1,912 acre-feet. Completed in 2004, 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 01/21/2021.
At 36 feet, this dam is taller than 83% 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 | Lewis Center |
| River/Stream | Alum Creek - Off Stream |
| Coordinates | 40.18917, -83.00667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 7,140 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 1,912 acre-ft |
| Max Storage | 1,912 acre-ft |
| Surface Area | 52 acres |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Del-Co Water Company, Inc. |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 01/21/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH03129 |
| Federal ID | OH03129 |
| More Info | State Dam Safety Program |