Lewis Lake

FIDDLE LAKE CREEK· Susquehanna, Pennsylvania· Built 1835· Earth· 15 ft tall

High Hazard Recreation Private

Key Takeaway

Lewis Lake is classified as high hazard in Pennsylvania. It was completed in 1835 and is 191 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	15 ft (taller than 27.6% in PA)
Dam Length	186 ft
Dam Type	Earth
Max Storage	977 acre-ft
Normal Storage	737 acre-ft

Surface Area	49 acres
Drainage Area	7 sq mi
Year Completed	1835 (191 years old)
NID ID	PA00061

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: November 6, 2020

State Regulated: Yes

Regulatory Agency: Pennsylvania Department of Environmental Protection

Ownership

LEWIS LAKE ASSOCIATION, INC

Private

Nearby Dams

Stillwater Dam

Susquehanna, PA

High Hazard 77 ft

Lowe Lake

Susquehanna, PA

Significant Hazard 5 ft

Four Seasons Lake

Susquehanna, PA

Significant Hazard 12 ft

Ross

Susquehanna, PA

Significant Hazard 21 ft

Belmont Lake

Wayne, PA

High Hazard 28 ft

Brace Brook

Wayne, PA

Low Hazard 23 ft

Cassidy Lake

Susquehanna, PA

Low Hazard 16 ft

Hathaway Pond

Susquehanna, PA

Significant Hazard 16 ft

Frequently Asked Questions

What is the hazard classification of Lewis Lake?

Lewis Lake 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 Lewis Lake?

Lewis Lake is owned by LEWIS LAKE ASSOCIATION, INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lewis Lake built?

Lewis Lake was completed in 1835, making it 191 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 Lewis Lake?

Lewis Lake 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 Lewis Lake?

Lewis Lake has a dam height of 15 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 Lewis Lake last inspected?

Lewis Lake was last inspected on November 6, 2020. 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.