Croghan Island Dam

BEAVER RIVER· Lewis, New York· Built 1919· Concrete· 12 ft tall
Low Hazard Other Private

Key Takeaway

Croghan Island Dam is classified as low hazard in New York. It was completed in 1919 and is 107 years old. Its primary use is other.

Physical Details

Dam Height 12 ft (taller than 23.2% in NY)
Dam Length260 ft
Dam TypeConcrete
Max Storage797 acre-ft
Normal Storage482 acre-ft
Surface Area121 acres
Drainage Area293 sq mi
Year Completed1919 (107 years old)
NID IDNY00694

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: Yes
Last Inspection: June 6, 2017
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

BEAVERITE CORPORATION;CROGHAN ISLAND MILL LUMBER CORPORATION;VAUGHN ZEHR

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Croghan Island Dam?

Croghan Island 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 Croghan Island Dam?

Croghan Island Dam is owned by BEAVERITE CORPORATION;CROGHAN ISLAND MILL LUMBER CORPORATION;VAUGHN ZEHR (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Croghan Island Dam built?

Croghan Island Dam was completed in 1919, making it 107 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 Croghan Island Dam?

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

How tall is Croghan Island Dam?

Croghan Island Dam has a dam height of 12 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 Croghan Island Dam last inspected?

Croghan Island Dam was last inspected on June 6, 2017. 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.