Chippewa Creek Structure Ii-a is an earth dam located in Medina County, Ohio, built in 1969. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 35 ft35 ft tall and 690 ft long, taller than 80% 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 Chippewa Creek Structure Ii-a
The primary purpose of Chippewa Creek Structure Ii-a is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Mwcd, Chippewa Subdistrict (local government). It impounds the Buck Creek near Seville.
The dam stands 35 feet tall and stretches 690 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 429 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1969, the structure is well into its service life at over 50 years old.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/27/2025.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Ohio |
| County | Medina |
| Nearest City | Seville |
| River/Stream | Buck Creek |
| Coordinates | 41.06333, -81.88278 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 690 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 429 acre-ft |
| Max Storage | 429 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,871 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Mwcd, Chippewa Subdistrict |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/27/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00618 |
| Federal ID | OH00618 |
| More Info | State Dam Safety Program |