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.
Location
| State | Maine |
| County | Aroostook |
| Nearest City | Ashland |
| River/Stream | Squa Pan Stream |
| Coordinates | 46.55644, -68.32542 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 590 ft |
| Year Completed | 1928 (98 years old) |
Storage & Hydraulics
| NID Storage | 59,300 acre-ft |
| Max Storage | 59,300 acre-ft |
| Normal Storage | 59,300 acre-ft |
| Surface Area | 5,043 acres |
| Drainage Area | 69 sq mi |
| Max Discharge | 36,850 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | InClime, Inc. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/31/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ME00234 |
| Federal ID | ME00234 |
| More Info | State Dam Safety Program |