Northpark Center Retention Dam
Northpark Center Retention Dam is a concrete dam located in Montgomery County, Ohio, built in 1995. It carries a Undetermined hazard potential classification and has a fair condition assessment.
About Northpark Center Retention Dam
The primary purpose of Northpark Center Retention Dam 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 Wright Way Ohio Llc (local government). It impounds the Tributary To The Great Miami River near Harrison.
The dam stands 9 feet tall and stretches 180 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1995, the structure is 31 years old.
Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 12/10/2024.
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Location
| State | Ohio |
| County | Montgomery |
| Nearest City | Harrison |
| River/Stream | Tributary To The Great Miami River |
| Coordinates | 39.87583, -84.14500 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 180 ft |
| Year Completed | 1995 (31 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 3,228 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Wright Way Ohio LLC |
| Owner Type | Local Government |
| Hazard Classification | Undetermined |
| Condition Assessment | Fair |
| Last Inspection | 12/10/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH02863 |
| Federal ID | OH02863 |
| More Info | State Dam Safety Program |