Middle West Deer

TR LITTLE DEER CREEK· Allegheny, Pennsylvania· Earth· 16 ft tall

High Hazard Recreation Local Government

Key Takeaway

Middle West Deer is classified as high hazard in Pennsylvania. 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	16 ft (taller than 32.5% in PA)
Dam Length	240 ft
Dam Type	Earth
Max Storage	41 acre-ft
Normal Storage	20 acre-ft

Drainage Area	1 sq mi
NID ID	PA01729

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: October 26, 2020

State Regulated: Yes

Regulatory Agency: Pennsylvania Department of Environmental Protection

Ownership

ALLEGHENY COUNTY DEPARTMENT OF ENGINEERING

Local Government

Nearby Dams

Upper West Deer Lake

Allegheny, PA

High Hazard 24 ft

Lower West Deer Lake

Allegheny, PA

High Hazard 16 ft

Rock Airport

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Significant Hazard 11 ft

Russelton Slurry Pond No 3

Allegheny, PA

Low Hazard 153 ft

Greisinger

Butler, PA

Low Hazard 19 ft

Fawn Mine #91 Refuse Impoundment

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High Hazard 120 ft

Harmar Refuse Bank

Allegheny, PA

High Hazard 410 ft

C.W. Bill Young Lock and Dam

Allegheny, PA

Significant Hazard

Frequently Asked Questions

What is the hazard classification of Middle West Deer?

Middle West Deer 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 Middle West Deer?

Middle West Deer is owned by ALLEGHENY COUNTY DEPARTMENT OF ENGINEERING (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Middle West Deer?

Middle West Deer 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 Middle West Deer?

Middle West Deer 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 Middle West Deer last inspected?

Middle West Deer was last inspected on October 26, 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.