Williams Reservoir
Williams Reservoir is an earth dam located in Allen County, Ohio, built in 2012. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Williams Reservoir
The primary purpose of Williams 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 Lima (local government). It impounds the Honey Run near Lima.
The dam stands 53 feet tall and stretches 18,936 feet across, creates a reservoir covering 426 acres, has a maximum storage capacity of 18,682 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2012, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/19/2022.
At 53 feet, this dam is taller than 94% 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 | Allen |
| Nearest City | Lima |
| River/Stream | Honey Run |
| Coordinates | 40.73611, -84.25167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 53 ft |
| Dam Height | 53 ft |
| Dam Length | 18,936 ft |
| Year Completed | 2012 (14 years old) |
Storage & Hydraulics
| NID Storage | 18,682 acre-ft |
| Max Storage | 18,682 acre-ft |
| Normal Storage | 16,534 acre-ft |
| Surface Area | 426 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Lima |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/19/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH03174 |
| Federal ID | OH03174 |
| More Info | State Dam Safety Program |