Jennings Pond Dam
Jennings Pond Dam is an earth dam located in Tompkins County, New York, built in 1986. It carries a High hazard potential classification and has a fair condition assessment.
About Jennings Pond Dam
The primary purpose of Jennings Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nys Parks & Recreation Finger Lakes (state). It impounds the Buttermilk Creek near Danby.
The dam stands 17 feet tall and stretches 565 feet across, creates a reservoir covering 32 acres, has a maximum storage capacity of 294 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1986, the structure is 40 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 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 02/27/2025.
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 | Tompkins |
| Nearest City | Danby |
| River/Stream | Buttermilk Creek |
| Coordinates | 42.34683, -76.48703 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 565 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 294 acre-ft |
| Max Storage | 294 acre-ft |
| Normal Storage | 128 acre-ft |
| Surface Area | 32 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | NYS PARKS & RECREATION FINGER LAKES |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 02/27/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00944 |
| Federal ID | NY00944 |
| More Info | State Dam Safety Program |