Ella Street Low Head Dam is a concrete dam located in Seneca County, Ohio. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 9 ft9 ft tall and 277 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Ella Street Low Head Dam
The primary purpose of Ella Street Low Head Dam 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 Aqua Ohio - Tiffin Division (public utility). It impounds the Sandusky River near Tiffin.
The dam stands 9 feet tall and stretches 277 feet across, creates a reservoir covering 70 acres, has a maximum storage capacity of 300 acre-feet, and collects water from a drainage area of 961 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/14/2023.
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Location
| State | Ohio |
| County | Seneca |
| Nearest City | Tiffin |
| River/Stream | Sandusky River |
| Coordinates | 41.10056, -83.18833 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 277 ft |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Normal Storage | 300 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 961 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Aqua Ohio - Tiffin Division |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/14/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00802 |
| Federal ID | OH00802 |
| More Info | State Dam Safety Program |