Waterloo

Seneca Canal· Seneca, New York· Built 1915· Concrete· 17 ft tall
High Hazard Hydroelectric Navigation State Government

Key Takeaway

Waterloo is classified as high hazard in New York. It was completed in 1915 and is 111 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 17 ft (taller than 46.3% in NY)
Dam Length306 ft
Dam TypeConcrete
Max Storage447.6K acre-ft
Normal Storage477.6K acre-ft
Surface Area43,200 acres
Drainage Area746 sq mi
Max Discharge3,850 cfs
Year Completed1915 (111 years old)
NID IDNY00709

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 10, 2022
State Regulated: No

Ownership

New York State Canal Corporation

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Waterloo?

Waterloo 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 Waterloo?

Waterloo is owned by New York State Canal Corporation (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Waterloo built?

Waterloo was completed in 1915, making it 111 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 Waterloo?

Waterloo serves the following purposes: Hydroelectric, Navigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Waterloo?

Waterloo has a dam height of 17 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 Waterloo last inspected?

Waterloo was last inspected on August 10, 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.