Herrings
Herrings is a concrete dam located in Jefferson County, New York, built in 1924. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Herrings
The primary purpose of Herrings 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 Erie Boulevard Hydropower, L.p. (private). It impounds the Black River near Herrings.
The dam stands 25 feet tall and stretches 650 feet across, creates a reservoir covering 140 acres, has a maximum storage capacity of 669 acre-feet, and collects water from a drainage area of 1,810 square miles. Completed in 1924, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/09/2019.
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Location
| State | New York |
| County | Jefferson |
| Nearest City | Herrings |
| River/Stream | Black River |
| Coordinates | 44.02090, -75.65120 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 650 ft |
| Year Completed | 1924 (102 years old) |
Storage & Hydraulics
| NID Storage | 669 acre-ft |
| Max Storage | 669 acre-ft |
| Normal Storage | 669 acre-ft |
| Surface Area | 140 acres |
| Drainage Area | 1,810 sq mi |
| Max Discharge | 46,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Erie Boulevard Hydropower, L.P. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/09/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY00296 |
| Federal ID | NY00296 |
| More Info | State Dam Safety Program |