Mechanicville

Hudson River· Rensselaer, New York· Built 1900· Concrete· 26 ft tall
Significant Hazard Hydroelectric Navigation Recreation State Government

Key Takeaway

Mechanicville is classified as significant hazard in New York. It was completed in 1900 and is 126 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 26 ft (taller than 73.4% in NY)
Dam Length1,774 ft
Dam TypeConcrete
Max Storage1.2K acre-ft
Normal Storage1.2K acre-ft
Surface Area275 acres
Drainage Area4,572 sq mi
Max Discharge169,900 cfs
Year Completed1900 (126 years old)
NID IDNY00988

Safety Information

Significant Hazard

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?

Emergency Action Plan: Yes
Last Inspection: September 14, 2022
State Regulated: No

Ownership

New York State Canal Corporation

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mechanicville?

Mechanicville 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 Mechanicville?

Mechanicville 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 Mechanicville built?

Mechanicville was completed in 1900, making it 126 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 Mechanicville?

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

How tall is Mechanicville?

Mechanicville has a dam height of 26 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 Mechanicville last inspected?

Mechanicville was last inspected on September 14, 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.