Mill Street
Key Takeaway
Mill Street is classified as high hazard in Maine. It was completed in 1910 and is 116 years old. Its primary use is recreation. 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 | 20 ft (taller than 74.1% in ME) |
| Dam Length | 530 ft |
| Dam Type | Concrete |
| Max Storage | 200 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 38 sq mi |
| Year Completed | 1910 (116 years old) |
| Year Modified | 2000 |
| NID ID | ME00273 |
Safety Information
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?
Ownership
Sanford
Local Government
Nearby Dams
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High Hazard 45 ftFrequently Asked Questions
What is the hazard classification of Mill Street?
Mill Street 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 Mill Street?
Mill Street is owned by Sanford (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mill Street built?
Mill Street was completed in 1910, making it 116 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 Mill Street?
Mill Street serves the following purposes: Recreation, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mill Street?
Mill Street has a dam height of 20 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 Mill Street last inspected?
Mill Street was last inspected on December 20, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.