Upper (north) Wiccopee Dam is a concrete dam located in Putnam County, New York, built in 1939. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 34 ft34 ft tall and 212 ft long, taller than 78% 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 concrete gravity section and the water level is illustrative.
About Upper (north) Wiccopee Dam
The primary purpose of Upper (north) Wiccopee Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City of Peekskill (local government). It impounds the Wiccopee Brook near Tompkins Corners.
The dam stands 34 feet tall and stretches 212 feet across, creates a reservoir covering 153 acres, has a maximum storage capacity of 2,103 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1939, the structure is well-established, with more than 75 years of service.
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 03/24/2025.
At 34 feet, this dam is taller than 78% 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 | Putnam |
| Nearest City | Tompkins Corners |
| River/Stream | Wiccopee Brook |
| Coordinates | 41.42090, -73.82126 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 212 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 2,103 acre-ft |
| Max Storage | 2,103 acre-ft |
| Normal Storage | 1,570 acre-ft |
| Surface Area | 153 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 3,874 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Peekskill |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/24/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00427 |
| Federal ID | NY00427 |
| More Info | State Dam Safety Program |