Oatka Creek Dam is a concrete dam located in Genesee County, New York, built in 1934. It carries a Significant hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 196 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 Oatka Creek Dam
Oatka Creek Dam is a dam in Genesee, New York. The dam is owned by Village of Leroy (local government). It impounds the Oatka Creek near Leroy.
The dam stands 15 feet tall and stretches 196 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 470 acre-feet, and collects water from a drainage area of 140 square miles. Completed in 1934, the structure is well-established, with more than 75 years of service.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/23/2022.
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Location
| State | New York |
| County | Genesee |
| Nearest City | Leroy |
| River/Stream | Oatka Creek |
| Coordinates | 42.97764, -77.98858 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 196 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 470 acre-ft |
| Max Storage | 470 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 140 sq mi |
| Max Discharge | 9,660 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Village of Leroy |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 09/23/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00435 |
| Federal ID | NY00435 |
| More Info | State Dam Safety Program |