Sidney Reservoir #5 Dam

COLLAR BROOK· Delaware, New York· Built 1936· Earth· 77 ft tall
Significant Hazard Water Supply Local Government

Key Takeaway

Sidney Reservoir #5 Dam is classified as significant hazard in New York. It was completed in 1936 and is 90 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 77 ft (taller than 97% in NY)
Dam Length225 ft
Dam TypeEarth
Max Storage163 acre-ft
Normal Storage163 acre-ft
Surface Area6 acres
Year Completed1936 (90 years old)
NID IDNY01086

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: January 7, 2021
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

VILLAGE OF SIDNEY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Sidney Reservoir #5 Dam?

Sidney Reservoir #5 Dam 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 Sidney Reservoir #5 Dam?

Sidney Reservoir #5 Dam is owned by VILLAGE OF SIDNEY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sidney Reservoir #5 Dam built?

Sidney Reservoir #5 Dam was completed in 1936, making it 90 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 Sidney Reservoir #5 Dam?

Sidney Reservoir #5 Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Sidney Reservoir #5 Dam?

Sidney Reservoir #5 Dam has a dam height of 77 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 Sidney Reservoir #5 Dam last inspected?

Sidney Reservoir #5 Dam was last inspected on January 7, 2021. 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.