Chasm is a concrete dam located in Franklin County, New York, built in 1913. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 209 ft long, taller than 50% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Chasm
The primary purpose of Chasm is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the Salmon River near Titusville.
The dam stands 25 feet tall and stretches 209 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 74 acre-feet, and collects water from a drainage area of 126 square miles. Completed in 1913, 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 07/13/2022.
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Location
| State | New York |
| County | Franklin |
| Nearest City | Titusville |
| River/Stream | Salmon River |
| Coordinates | 44.74540, -74.22330 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 209 ft |
| Year Completed | 1913 (113 years old) |
Storage & Hydraulics
| NID Storage | 74 acre-ft |
| Max Storage | 74 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 126 sq mi |
| Max Discharge | 5,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | Not Listed |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/13/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY00469 |
| Federal ID | NY00469 |
| More Info | State Dam Safety Program |