Lake Constance

SWAMP BROOK· Wayne, Pennsylvania· Built 1918· Earth· 16 ft tall
Significant Hazard Recreation Private

Key Takeaway

Lake Constance is classified as significant hazard in Pennsylvania. It was completed in 1918 and is 108 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 16 ft (taller than 32.5% in PA)
Dam Length180 ft
Dam TypeEarth
Max Storage321 acre-ft
Normal Storage173 acre-ft
Surface Area53 acres
Drainage Area4 sq mi
Year Completed1918 (108 years old)
NID IDPA00155

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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, 2019
State Regulated: Yes
Regulatory Agency: Pennsylvania Department of Environmental Protection

Ownership

LAKE CONSTANCE CORPORATION

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Constance?

Lake Constance is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Lake Constance?

Lake Constance is owned by LAKE CONSTANCE CORPORATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Constance built?

Lake Constance was completed in 1918, making it 108 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 Lake Constance?

Lake Constance 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 Lake Constance?

Lake Constance has a dam height of 16 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 Lake Constance last inspected?

Lake Constance was last inspected on November 6, 2019. 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.