Essex No. 19
Key Takeaway
Essex No. 19 is classified as significant hazard in Vermont. It was completed in 1917 and is 109 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 53 ft (taller than 92.8% in VT) |
| Dam Length | 475 ft |
| Dam Type | Concrete |
| Max Storage | 2.0K acre-ft |
| Normal Storage | 2.0K acre-ft |
| Surface Area | 352 acres |
| Drainage Area | 1,043 sq mi |
| Max Discharge | 75,000 cfs |
| Year Completed | 1917 (109 years old) |
| NID ID | VT00045 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Green Mountain Power Corporation
Public Utility
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Significant Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Essex No. 19?
Essex No. 19 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Essex No. 19?
Essex No. 19 is owned by Green Mountain Power Corporation (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Essex No. 19 built?
Essex No. 19 was completed in 1917, making it 109 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 Essex No. 19?
Essex No. 19 serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Essex No. 19?
Essex No. 19 has a dam height of 53 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 Essex No. 19 last inspected?
Essex No. 19 was last inspected on May 18, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.