Chaumont Swamp Dam

TR-OSWEGATCHIE RIVER· St. Lawrence, New York· Built 1954· Rockfill· 100 ft tall
Low Hazard Irrigation Private

Key Takeaway

Chaumont Swamp Dam is classified as low hazard in New York. It was completed in 1954 and is 72 years old. Its primary use is irrigation.

Physical Details

Dam Height 100 ft (taller than 98.2% in NY)
Dam Length9,000 ft
Dam TypeRockfill
Max Storage4.5K acre-ft
Normal Storage4.5K acre-ft
Surface Area207 acres
Drainage Area0 sq mi
Year Completed1954 (72 years old)
NID IDNY01388

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: July 14, 2010
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

ST LAWRENCE COUNTY DEVELOPMENT AGENCY

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Chaumont Swamp Dam?

Chaumont Swamp Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Chaumont Swamp Dam?

Chaumont Swamp Dam is owned by ST LAWRENCE COUNTY DEVELOPMENT AGENCY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Chaumont Swamp Dam built?

Chaumont Swamp Dam was completed in 1954, making it 72 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 Chaumont Swamp Dam?

Chaumont Swamp Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Chaumont Swamp Dam?

Chaumont Swamp Dam has a dam height of 100 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 Chaumont Swamp Dam last inspected?

Chaumont Swamp Dam was last inspected on July 14, 2010. 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.