Riley

Riley is a timber crib dam located in Franklin County, Maine, built in 1897. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Riley

The primary purpose of Riley 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 Eagle Creek Renewable Energies, Llc Parent Org (cro) (private). It impounds the Androscoggin River near Jay.

The dam stands 23 feet tall and stretches 757 feet across, creates a reservoir covering 578 acres, has a maximum storage capacity of 2,000 acre-feet, and collects water from a drainage area of 2,440 square miles. Completed in 1897, 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 09/12/2023.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMaine
CountyFranklin
Nearest CityJay
River/StreamAndroscoggin River
Coordinates44.50244, -70.25014

Physical Characteristics

Dam TypeTimber Crib
NID Height23 ft
Dam Height23 ft
Dam Length757 ft
Year Completed1897 (129 years old)

Storage & Hydraulics

NID Storage2,000 acre-ft
Max Storage2,000 acre-ft
Normal Storage2,000 acre-ft
Surface Area578 acres
Drainage Area2,440 sq mi
Max Discharge64,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerEagle Creek Renewable Energies, LLC Parent Org (CRO)
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection09/12/2023
Emergency Action PlanNot Required

Identifiers

NID IDME00011
Federal IDME00011
More InfoState Dam Safety Program

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