Gorge No. 18 is a concrete dam located in Chittenden County, Vermont, built in 1914. It carries a Low hazard potential classification.
Dam profile
NID height · 46 ft46 ft tall and 350 ft long, taller than 91% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Gorge No. 18
The primary purpose of Gorge No. 18 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 Green Mountain Power Corp (public utility). It impounds the Winooski River near South Burlington.
The dam stands 46 feet tall and stretches 350 feet across, creates a reservoir covering 87 acres, has a maximum storage capacity of 1,690 acre-feet, and collects water from a drainage area of 1,080 square miles. Completed in 1914, 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 05/03/1984. That was over 42 years ago.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Vermont |
| County | Chittenden |
| Nearest City | South Burlington |
| River/Stream | Winooski River |
| Coordinates | 44.49022, -73.16897 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 350 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 1,690 acre-ft |
| Max Storage | 1,690 acre-ft |
| Surface Area | 87 acres |
| Drainage Area | 1,080 sq mi |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Green Mountain Power Corp |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/03/1984 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | VT00030 |
| Federal ID | VT00030 |
| More Info | State Dam Safety Program |