Hammond Lake Ii Dam
Hammond Lake Ii Dam is an earth dam located in Columbiana County, Ohio, built in 1951. It carries a Low hazard potential classification and has a poor condition assessment.
About Hammond Lake Ii Dam
The primary purpose of Hammond Lake Ii Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Peter J. Conkle (private). It impounds the Sandy Creek near Hanoverton.
The dam stands 17 feet tall and stretches 465 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 70 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1951, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 05/28/2025.
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Location
| State | Ohio |
| County | Columbiana |
| Nearest City | Hanoverton |
| River/Stream | Sandy Creek |
| Coordinates | 40.75417, -80.91111 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 465 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 70 acre-ft |
| Max Storage | 70 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 65 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Peter J. Conkle |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 05/28/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00329 |
| Federal ID | OH00329 |
| More Info | State Dam Safety Program |