Holland Lake Dam
Holland Lake Dam is an earth dam located in Logan County, Ohio. It carries a Significant hazard potential classification and has a poor condition assessment.
About Holland Lake Dam
The primary purpose of Holland Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Multiple Owners - 0235-012 (private). It impounds the Tributary To Mad River near West Liberty.
The dam stands 34 feet tall and stretches 400 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 112 acre-feet, and collects water from a drainage area of 0 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 10/22/2024.
At 34 feet, this dam is taller than 80% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Ohio |
| County | Logan |
| Nearest City | West Liberty |
| River/Stream | Tributary To Mad River |
| Coordinates | 40.30917, -83.72167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 400 ft |
Storage & Hydraulics
| NID Storage | 112 acre-ft |
| Max Storage | 112 acre-ft |
| Normal Storage | 22 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 131 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Multiple Owners - 0235-012 |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 10/22/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH01948 |
| Federal ID | OH01948 |
| More Info | State Dam Safety Program |