Sand Lake Dam
Sand Lake Dam is a masonry dam located in Herkimer County, New York, built in 1901. It carries a Low hazard potential classification.
About Sand Lake Dam
The primary purpose of Sand Lake Dam is navigation. The dam maintains water levels sufficient for boat and barge traffic, supporting commercial or recreational navigation on the waterway. The dam is owned by New York State Canal Corporation (state). It impounds the Grindstone Creek near Woodhull.
The dam stands 30 feet tall and stretches 317 feet across, creates a reservoir covering 313 acres, and has a maximum storage capacity of 3,770 acre-feet. Completed in 1901, the structure is over a century old.
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. The most recent inspection on record was 09/03/1971. That was over 54 years ago.
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Location
| State | New York |
| County | Herkimer |
| Nearest City | Woodhull |
| River/Stream | Grindstone Creek |
| Coordinates | 43.56500, -74.99167 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 317 ft |
| Year Completed | 1901 (125 years old) |
Storage & Hydraulics
| NID Storage | 3,770 acre-ft |
| Max Storage | 3,770 acre-ft |
| Normal Storage | 3,390 acre-ft |
| Surface Area | 313 acres |
| Max Discharge | 400 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Navigation |
| Owner | New York State Canal Corporation |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 09/03/1971 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY00312 |
| Federal ID | NY00312 |
| More Info | State Dam Safety Program |