Cuba Lake Outlet Spillway Dam is a concrete dam located in Allegany County, New York, built in 1919. It carries a Significant hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 136 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 Cuba Lake Outlet Spillway Dam
The primary purpose of Cuba Lake Outlet Spillway Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Cuba Lake District;new York State Office of General Services;seneca Nation of Indians (private). It impounds the Cuba Lake Outlet near Maplehurst.
The dam stands 9 feet tall and stretches 136 feet across, creates a reservoir covering 465 acres, has a maximum storage capacity of 16,498 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 1919, the structure is over a century 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. An emergency action plan is in place for this dam. The most recent inspection on record was 06/02/2022.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New York |
| County | Allegany |
| Nearest City | Maplehurst |
| River/Stream | Cuba Lake Outlet |
| Coordinates | 42.23667, -78.30750 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 136 ft |
| Year Completed | 1919 (107 years old) |
Storage & Hydraulics
| NID Storage | 16,498 acre-ft |
| Max Storage | 16,498 acre-ft |
| Normal Storage | 8,215 acre-ft |
| Surface Area | 465 acres |
| Drainage Area | 25 sq mi |
| Max Discharge | 800 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Cuba Lake District;new York State Office of General Services;seneca Nation of Indians |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 06/02/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00456 |
| Federal ID | NY00456 |
| More Info | State Dam Safety Program |