Cobleskill Upper Reservoir Dam
Cobleskill Upper Reservoir Dam is an earth dam located in Schoharie County, New York, built in 1967. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Cobleskill Upper Reservoir Dam
The primary purpose of Cobleskill Upper Reservoir 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 Village Of Cobleskill (local government). It impounds the Smith Brook near Mineral Springs.
The dam stands 30 feet tall and stretches 2,200 feet across, creates a reservoir covering 25 acres, has a maximum storage capacity of 353 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1967, 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 08/16/2023.
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 | Schoharie |
| Nearest City | Mineral Springs |
| River/Stream | Smith Brook |
| Coordinates | 42.66306, -74.44917 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 2,200 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 353 acre-ft |
| Max Storage | 353 acre-ft |
| Normal Storage | 239 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,585 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | VILLAGE OF COBLESKILL |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/16/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00656 |
| Federal ID | NY00656 |
| More Info | State Dam Safety Program |