Tannery Pond
Tannery Pond is a masonry dam located in Worcester County, Massachusetts, built in 1936. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Tannery Pond
The primary purpose of Tannery Pond is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by French River Land Company, Inc. (private). It impounds the Millers River near Winchendon.
The dam stands 10 feet tall and stretches 248 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 51 acre-feet, and collects water from a drainage area of 54 square miles. Completed in 1936, the structure is well-established, with more than 75 years 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/01/2022.
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Location
| State | Massachusetts |
| County | Worcester |
| Nearest City | Winchendon |
| River/Stream | Millers River |
| Coordinates | 42.68010, -72.05310 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 248 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 51 acre-ft |
| Max Storage | 51 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 54 sq mi |
| Max Discharge | 3,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | French River Land Company, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/01/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00854 |
| Federal ID | MA00854 |
| More Info | State Dam Safety Program |