Arnold Falls is a timber crib dam located in Caledonia County, Vermont. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 285 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Arnold Falls
The primary purpose of Arnold Falls 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 Passumpsic River near St. Johnsbury.
The dam stands 21 feet tall and stretches 285 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 170 acre-feet, and collects water from a drainage area of 245 square miles.
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 05/10/2000. That was over 26 years ago.
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Location
| State | Vermont |
| County | Caledonia |
| Nearest City | St. Johnsbury |
| River/Stream | Passumpsic River |
| Coordinates | 44.42517, -72.01365 |
Physical Characteristics
| Dam Type | Timber Crib |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 285 ft |
Storage & Hydraulics
| NID Storage | 170 acre-ft |
| Max Storage | 170 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 245 sq mi |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Green Mountain Power Corp |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/10/2000 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | VT00189 |
| Federal ID | VT00189 |
| More Info | State Dam Safety Program |