Scopan

Scopan is a concrete dam located in Aroostook County, Maine, built in 1928. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Scopan

The primary purpose of Scopan 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 Inclime, Inc. (private). It impounds the Squa Pan Stream near Ashland.

The dam stands 35 feet tall and stretches 590 feet across, creates a reservoir covering 5,043 acres, has a maximum storage capacity of 59,300 acre-feet, and collects water from a drainage area of 69 square miles. Completed in 1928, the structure is well-established, with more than 75 years of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/31/2022.

At 35 feet, this dam is taller than 82% of dams nationwide.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Maine dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMaine
CountyAroostook
Nearest CityAshland
River/StreamSqua Pan Stream
Coordinates46.55644, -68.32542

Physical Characteristics

Dam TypeConcrete
NID Height35 ft
Dam Height35 ft
Dam Length590 ft
Year Completed1928 (98 years old)

Storage & Hydraulics

NID Storage59,300 acre-ft
Max Storage59,300 acre-ft
Normal Storage59,300 acre-ft
Surface Area5,043 acres
Drainage Area69 sq mi
Max Discharge36,850 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerInClime, Inc.
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection08/31/2022
Emergency Action PlanYes

Identifiers

NID IDME00234
Federal IDME00234
More InfoState Dam Safety Program

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