Unger

RED SHALE BROOK· Wayne, Pennsylvania· Built 1947· Earth· 9 ft tall
Significant Hazard Recreation Private

Key Takeaway

Unger is classified as significant hazard in Pennsylvania. It was completed in 1947 and is 79 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 9 ft (taller than 5.5% in PA)
Dam Length256 ft
Dam TypeEarth
Max Storage70 acre-ft
Normal Storage47 acre-ft
Surface Area17 acres
Drainage Area0 sq mi
Year Completed1947 (79 years old)
NID IDPA01090

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: July 28, 2020
State Regulated: Yes
Regulatory Agency: Pennsylvania Department of Environmental Protection

Ownership

MICHAEL DRUMMOND

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Unger?

Unger 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 Unger?

Unger is owned by MICHAEL DRUMMOND (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Unger built?

Unger was completed in 1947, making it 79 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 Unger?

Unger 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 Unger?

Unger 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 Unger last inspected?

Unger was last inspected on July 28, 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.