Lamson Dike

SHAWANGUNK LAKE· Orange, New York· Built 1925· Earth· 9 ft tall
Low Hazard Water Supply Local Government

Key Takeaway

Lamson Dike is classified as low hazard in New York. It was completed in 1925 and is 101 years old. Its primary use is water supply.

Physical Details

Dam Height 9 ft (taller than 9% in NY)
Dam Length190 ft
Dam TypeEarth
Max Storage51 acre-ft
Normal Storage34 acre-ft
Surface Area4 acres
Year Completed1925 (101 years old)
NID IDNY00600

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: November 5, 2018
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

CITY OF MIDDLETOWN

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lamson Dike?

Lamson Dike 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 Lamson Dike?

Lamson Dike is owned by CITY OF MIDDLETOWN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lamson Dike built?

Lamson Dike was completed in 1925, making it 101 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 Lamson Dike?

Lamson Dike 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 Lamson Dike?

Lamson Dike has a dam height of 9 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 Lamson Dike last inspected?

Lamson Dike was last inspected on November 5, 2018. 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.