Patterson Brixius Grey Watershed 1 Dam

PATTERSON CREEK· Broome, New York· Built 1966· Earth· 65 ft tall

High Hazard Flood Risk Reduction Local Government

Key Takeaway

Patterson Brixius Grey Watershed 1 Dam is classified as high hazard in New York. It was completed in 1966 and is 60 years old. Its primary use is flood risk reduction. 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	65 ft (taller than 95.6% in NY)
Dam Length	1,300 ft
Dam Type	Earth
Max Storage	1.3K acre-ft
Normal Storage	285 acre-ft

Surface Area	24 acres
Drainage Area	4 sq mi
Max Discharge	17,500 cfs
Year Completed	1966 (60 years old)
NID ID	NY00698

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: May 14, 2020

State Regulated: Yes

Regulatory Agency: NYS DEC

Ownership

BROOME COUNTY - BROOME COUNTY DEPARTMENT OF PARKS AND RECREATION

Local Government

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Frequently Asked Questions

What is the hazard classification of Patterson Brixius Grey Watershed 1 Dam?

Patterson Brixius Grey Watershed 1 Dam 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 Patterson Brixius Grey Watershed 1 Dam?

Patterson Brixius Grey Watershed 1 Dam is owned by BROOME COUNTY - BROOME COUNTY DEPARTMENT OF PARKS AND RECREATION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Patterson Brixius Grey Watershed 1 Dam built?

Patterson Brixius Grey Watershed 1 Dam was completed in 1966, making it 60 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 Patterson Brixius Grey Watershed 1 Dam?

Patterson Brixius Grey Watershed 1 Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Patterson Brixius Grey Watershed 1 Dam?

Patterson Brixius Grey Watershed 1 Dam has a dam height of 65 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 Patterson Brixius Grey Watershed 1 Dam last inspected?

Patterson Brixius Grey Watershed 1 Dam was last inspected on May 14, 2020. 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.