Marshfield No. 6
Key Takeaway
Marshfield No. 6 is classified as high hazard in Vermont. It was completed in 1927 and is 99 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 | 48 ft (taller than 90.3% in VT) |
| Dam Length | 1,100 ft |
| Dam Type | Earth |
| Max Storage | 13.5K acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 411 acres |
| Drainage Area | 19 sq mi |
| Year Completed | 1927 (99 years old) |
| NID ID | VT00046 |
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
GREEN MOUNTAIN POWER CORP
Public Utility
Nearby Dams
Peacham Pond
Caledonia, VT
Significant Hazard 26 ftRichards
Washington, VT
Significant Hazard 11 ftBailey Pond
Washington, VT
Low Hazard 10 ftWest Hill Pond
Washington, VT
Significant Hazard 11 ftEast Long Pond
Washington, VT
High Hazard 20 ftNichols
Washington, VT
High Hazard 18 ftMartins Pond
Caledonia, VT
Low Hazard 8 ftWest Danville No. 15
Caledonia, VT
Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Marshfield No. 6?
Marshfield No. 6 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 Marshfield No. 6?
Marshfield No. 6 is owned by GREEN MOUNTAIN POWER CORP (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Marshfield No. 6 built?
Marshfield No. 6 was completed in 1927, making it 99 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 Marshfield No. 6?
Marshfield No. 6 serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Marshfield No. 6?
Marshfield No. 6 has a dam height of 48 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 Marshfield No. 6 last inspected?
Marshfield No. 6 was last inspected on January 1, 1987. Inspection dates indicate when a formal review occurred, not the results of that inspection.