Weiden Lake Dam

EAST BRANCH TENMILE RIVER· Sullivan, New York· Built 1920· Concrete· 25 ft tall
Low Hazard Recreation Private

Key Takeaway

Weiden Lake Dam is classified as low hazard in New York. It was completed in 1920 and is 106 years old. Its primary use is recreation.

Physical Details

Dam Height 25 ft (taller than 69.7% in NY)
Dam Length161 ft
Dam TypeConcrete
Max Storage650 acre-ft
Normal Storage495 acre-ft
Surface Area64 acres
Max Discharge2,950 cfs
Year Completed1920 (106 years old)
NID IDNY01322

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: September 15, 2011
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

WEIDEN LAKE PROPOERTY OWNERS ASSOCIATION, INC.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Weiden Lake Dam?

Weiden Lake 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 Weiden Lake Dam?

Weiden Lake Dam is owned by WEIDEN LAKE PROPOERTY OWNERS ASSOCIATION, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Weiden Lake Dam built?

Weiden Lake Dam was completed in 1920, making it 106 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 Weiden Lake Dam?

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

How tall is Weiden Lake Dam?

Weiden Lake Dam has a dam height of 25 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 Weiden Lake Dam last inspected?

Weiden Lake Dam was last inspected on September 15, 2011. 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.