Arnold Falls

Arnold Falls is a timber crib dam located in Caledonia County, Vermont. It carries a Low hazard potential classification.

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 25 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateVermont
CountyCaledonia
Nearest CitySt. Johnsbury
River/StreamPassumpsic River
Coordinates44.42517, -72.01365

Physical Characteristics

Dam TypeTimber Crib
NID Height21 ft
Dam Height21 ft
Dam Length285 ft

Storage & Hydraulics

NID Storage170 acre-ft
Max Storage170 acre-ft
Surface Area7 acres
Drainage Area245 sq mi

Ownership & Safety

PurposeHydroelectric
OwnerGREEN MOUNTAIN POWER CORP
Owner TypePublic Utility
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection05/10/2000
Emergency Action PlanNot Required

Identifiers

NID IDVT00189
Federal IDVT00189
More InfoState Dam Safety Program

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