Johnson State Lower

LAMOILLE RIVER· Lamoille, Vermont· Built 1960· Earth· 14 ft tall
High Hazard Recreation State Government

Key Takeaway

Johnson State Lower is classified as high hazard in Vermont. It was completed in 1960 and is 66 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 14 ft (taller than 29.8% in VT)
Dam Length400 ft
Dam TypeEarth
Max Storage11 acre-ft
Normal Storage0 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Year Completed1960 (66 years old)
NID IDVT00358

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: June 9, 2017
State Regulated: No

Ownership

STATE OF VERMONT - JSC

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Johnson State Lower?

Johnson State Lower is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Johnson State Lower?

Johnson State Lower is owned by STATE OF VERMONT - JSC (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Johnson State Lower built?

Johnson State Lower was completed in 1960, making it 66 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 Johnson State Lower?

Johnson State Lower 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 Johnson State Lower?

Johnson State Lower has a dam height of 14 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 Johnson State Lower last inspected?

Johnson State Lower was last inspected on June 9, 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.