Scopan

Squa Pan Stream· Aroostook, Maine· Built 1928· Concrete· 35 ft tall

Key Takeaway

Scopan is classified as high hazard in Maine. It was completed in 1928 and is 98 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 35 ft (taller than 91.5% in ME)
Dam Length590 ft
Dam TypeConcrete
Max Storage59.3K acre-ft
Normal Storage59.3K acre-ft
Surface Area5,043 acres
Drainage Area69 sq mi
Max Discharge36,850 cfs
Year Completed1928 (98 years old)
NID IDME00234

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: August 31, 2022
State Regulated: No

Ownership

InClime, Inc.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Scopan?

Scopan is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Scopan?

Scopan is owned by InClime, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Scopan built?

Scopan was completed in 1928, making it 98 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Scopan?

Scopan serves the following purposes: Hydroelectric, Recreation, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Scopan?

Scopan has a dam height of 35 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Scopan last inspected?

Scopan was last inspected on August 31, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.