Lake Timberlin is an earth dam located in Richland County, Ohio, built in 1969. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 31 ft31 ft tall and 600 ft long, taller than 72% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Lake Timberlin
The primary purpose of Lake Timberlin is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lonnie E. & Holly L. Mcghee, Jr. (private). It impounds the Tributary to Steel Run near Bellville.
The dam stands 31 feet tall and stretches 600 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 92 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1969, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 11/05/2024.
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Location
| State | Ohio |
| County | Richland |
| Nearest City | Bellville |
| River/Stream | Tributary to Steel Run |
| Coordinates | 40.58000, -82.58444 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 600 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 92 acre-ft |
| Max Storage | 92 acre-ft |
| Normal Storage | 53 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 464 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lonnie E. & Holly L. Mcghee, Jr. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/05/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00451 |
| Federal ID | OH00451 |
| More Info | State Dam Safety Program |