Forbidden Lake Dam is an earth dam located in Union County, Ohio, built in 1998. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 13 ft13 ft tall and 2,500 ft long. 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 Forbidden Lake Dam
The primary purpose of Forbidden Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dan Block (private). It impounds the Robinson Run near Plain City.
The dam stands 13 feet tall and stretches 2,500 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 194 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1998, the structure is 28 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/19/2020.
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Location
| State | Ohio |
| County | Union |
| Nearest City | Plain City |
| River/Stream | Robinson Run |
| Coordinates | 40.18306, -83.35639 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 2,500 ft |
| Year Completed | 1998 (28 years old) |
Storage & Hydraulics
| NID Storage | 194 acre-ft |
| Max Storage | 194 acre-ft |
| Normal Storage | 125 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 15 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Dan Block |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/19/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH02965 |
| Federal ID | OH02965 |
| More Info | State Dam Safety Program |