Fremont Upground Reservoir is an earth dam located in Sandusky County, Ohio, built in 2012. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 34 ft34 ft tall and 8,888 ft long, taller than 78% 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 Fremont Upground Reservoir
The primary purpose of Fremont Upground Reservoir is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City of Fremont (local government). It impounds the Sandusky River near Ballville.
The dam stands 34 feet tall and stretches 8,888 feet across, creates a reservoir covering 93 acres, has a maximum storage capacity of 2,700 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2012, the structure is relatively new.
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 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 06/14/2023.
At 34 feet, this dam is taller than 78% 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 | Sandusky |
| Nearest City | Ballville |
| River/Stream | Sandusky River |
| Coordinates | 41.32250, -83.16056 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 8,888 ft |
| Year Completed | 2012 (14 years old) |
Storage & Hydraulics
| NID Storage | 2,700 acre-ft |
| Max Storage | 2,700 acre-ft |
| Normal Storage | 2,240 acre-ft |
| Surface Area | 93 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 16,607 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Fremont |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/14/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH03201 |
| Federal ID | OH03201 |
| More Info | State Dam Safety Program |