Mayham Pond Dam is an earth dam located in Schoharie County, New York, built in 1813. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 109 ft long. 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 Mayham Pond Dam
The primary purpose of Mayham Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Pine Island Farm Property Homeowners Association (private). It impounds the Bear Kill near Grand Gorge.
The dam stands 11 feet tall and stretches 109 feet across, creates a reservoir covering 37 acres, has a maximum storage capacity of 224 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1813, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 07/16/2015. That was over 11 years ago.
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Location
| State | New York |
| County | Schoharie |
| Nearest City | Grand Gorge |
| River/Stream | Bear Kill |
| Coordinates | 42.41333, -74.56083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 109 ft |
| Year Completed | 1813 (213 years old) |
Storage & Hydraulics
| NID Storage | 224 acre-ft |
| Max Storage | 224 acre-ft |
| Normal Storage | 144 acre-ft |
| Surface Area | 37 acres |
| Drainage Area | 3 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Pine Island Farm Property Homeowners Association |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/16/2015 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY01416 |
| Federal ID | NY01416 |
| More Info | State Dam Safety Program |