Carthage State Dam
Carthage State Dam is a concrete dam located in Jefferson County, New York, built in 1854. It carries a Low hazard potential classification.
About Carthage State Dam
The primary purpose of Carthage State 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 Office Of General Services (state). It impounds the Black River near Carthage.
The dam stands 8 feet tall and stretches 829 feet across, creates a reservoir covering 690 acres, has a maximum storage capacity of 2,400 acre-feet, and collects water from a drainage area of 1,800 square miles. Completed in 1854, 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. The most recent inspection on record was 08/01/1996. That was over 29 years ago.
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Location
| State | New York |
| County | Jefferson |
| Nearest City | Carthage |
| River/Stream | Black River |
| Coordinates | 43.97833, -75.61500 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 829 ft |
| Year Completed | 1854 (172 years old) |
Storage & Hydraulics
| NID Storage | 2,400 acre-ft |
| Max Storage | 2,400 acre-ft |
| Normal Storage | 2,400 acre-ft |
| Surface Area | 690 acres |
| Drainage Area | 1,800 sq mi |
| Max Discharge | 4,900 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Navigation |
| Owner | New York State Office of General Services |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/01/1996 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY00764 |
| Federal ID | NY00764 |
| More Info | State Dam Safety Program |