Lower Diehl Lake Dam is an earth dam located in Mahoning County, Ohio, built in 1930. It carries a Undetermined hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 233 ft long, taller than 59% 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 Lower Diehl Lake Dam
The primary purpose of Lower Diehl Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Diehl Lake Company, Inc. (private). It impounds the West Branch Meander Creek near Westhill Heights.
The dam stands 27 feet tall and stretches 233 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 55 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.
An emergency action plan is in place for this dam. The most recent inspection on record was 09/23/2021.
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Location
| State | Ohio |
| County | Mahoning |
| Nearest City | Westhill Heights |
| River/Stream | West Branch Meander Creek |
| Coordinates | 41.01278, -80.85833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 233 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Max Storage | 55 acre-ft |
| Normal Storage | 31 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 3,800 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Diehl Lake Company, Inc. |
| Owner Type | Private |
| Hazard Classification | Undetermined |
| Condition Assessment | Not assessed |
| Last Inspection | 09/23/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00418 |
| Federal ID | OH00418 |
| More Info | State Dam Safety Program |