Mogadore Reservoir Dam
Mogadore Reservoir Dam is an earth dam located in Portage County, Ohio, built in 1938. It carries a High hazard potential classification and has a poor condition assessment.
About Mogadore Reservoir Dam
The primary purpose of Mogadore Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Akron (local government). It impounds the Little Cuyahoga River near Springfield.
The dam stands 36 feet tall and stretches 640 feet across, creates a reservoir covering 1,401 acres, has a maximum storage capacity of 21,000 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1938, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 04/20/2023.
At 36 feet, this dam is taller than 83% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Ohio dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Ohio |
| County | Portage |
| Nearest City | Springfield |
| River/Stream | Little Cuyahoga River |
| Coordinates | 41.05778, -81.38056 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 640 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 21,000 acre-ft |
| Max Storage | 21,000 acre-ft |
| Normal Storage | 7,000 acre-ft |
| Surface Area | 1,401 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 3,679 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Akron |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 04/20/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00665 |
| Federal ID | OH00665 |
| More Info | State Dam Safety Program |