Fourth Street East Impoundment Dam

PLEASANT CREEK· Jefferson, New York· Built 1987· Earth· 29 ft tall
Low Hazard Flood Risk Reduction Federal Government

Key Takeaway

Fourth Street East Impoundment Dam is classified as low hazard in New York. It was completed in 1987 and is 39 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 29 ft (taller than 77.5% in NY)
Dam Length830 ft
Dam TypeEarth
Max Storage1.5K acre-ft
Normal Storage0 acre-ft
Surface Area0 acres
Drainage Area3 sq mi
Max Discharge381 cfs
Year Completed1987 (39 years old)
NID IDNY01561

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: August 1, 1996
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

UNITED STATES ARMY - FORT DRUM DPW

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Fourth Street East Impoundment Dam?

Fourth Street East Impoundment 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 Fourth Street East Impoundment Dam?

Fourth Street East Impoundment Dam is owned by UNITED STATES ARMY - FORT DRUM DPW (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Fourth Street East Impoundment Dam built?

Fourth Street East Impoundment Dam was completed in 1987, making it 39 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 Fourth Street East Impoundment Dam?

Fourth Street East Impoundment 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 Fourth Street East Impoundment Dam?

Fourth Street East Impoundment Dam has a dam height of 29 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 Fourth Street East Impoundment Dam last inspected?

Fourth Street East Impoundment Dam was last inspected on August 1, 1996. 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.