Nanticoke Creek Site 9a Dam is an earth dam located in Broome County, New York, built in 1965. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 37 ft37 ft tall and 355 ft long, taller than 83% 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 Nanticoke Creek Site 9a Dam
The primary purpose of Nanticoke Creek Site 9a 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 Broome County - Broome County Department of Parks and Recreation (local government). It impounds the Nanticoke Creek near Nanticoke.
The dam stands 37 feet tall and stretches 355 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 480 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1965, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/25/2024.
At 37 feet, this dam is taller than 83% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New York dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New York |
| County | Broome |
| Nearest City | Nanticoke |
| River/Stream | Nanticoke Creek |
| Coordinates | 42.30667, -76.09333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 355 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 480 acre-ft |
| Max Storage | 480 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 2,445 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Broome County - Broome County Department of Parks and Recreation |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/25/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00567 |
| Federal ID | NY00567 |
| More Info | State Dam Safety Program |