Thomas Lake Dam
Thomas Lake Dam is an earth dam located in Trumbull County, Ohio, built in 1973. It carries a Significant hazard potential classification and has a poor condition assessment.
About Thomas Lake Dam
The primary purpose of Thomas Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by George P. & Marilyn Thomas (private). It impounds the Tributary To Little Yankee Run near Brookfield Station.
The dam stands 15 feet tall and stretches 395 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 34 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1973, 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. The most recent inspection on record was 10/12/2021.
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Location
| State | Ohio |
| County | Trumbull |
| Nearest City | Brookfield Station |
| River/Stream | Tributary To Little Yankee Run |
| Coordinates | 41.25167, -80.62083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 395 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 34 acre-ft |
| Max Storage | 34 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 15 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | George P. & Marilyn Thomas |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 10/12/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH02496 |
| Federal ID | OH02496 |
| More Info | State Dam Safety Program |