Lake George Dam
Lake George Dam is an earth dam located in Ashtabula County, Ohio, built in 1964. It carries a Significant hazard potential classification and has a poor condition assessment.
About Lake George Dam
The primary purpose of Lake George Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Lake Asegra Association Inc (private). It impounds the Tributary To Grand River near Mechanicsville.
The dam stands 17 feet tall and stretches 300 feet across, creates a reservoir covering 35 acres, has a maximum storage capacity of 315 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1964, the structure is well into its service life at over 50 years old.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 10/06/2021.
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Location
| State | Ohio |
| County | Ashtabula |
| Nearest City | Mechanicsville |
| River/Stream | Tributary To Grand River |
| Coordinates | 41.74083, -80.88417 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 300 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 315 acre-ft |
| Max Storage | 315 acre-ft |
| Normal Storage | 146 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 544 cfs |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Lake Asegra Association Inc |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 10/06/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00402 |
| Federal ID | OH00402 |
| More Info | State Dam Safety Program |