Daley Dam

TR-Catoctin Creek· Loudoun, Virginia· Earth· 29 ft tall
Significant Hazard Recreation Private

Key Takeaway

Daley Dam is classified as significant hazard in Virginia. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 29 ft (taller than 64.7% in VA)
Dam Length675 ft
Dam TypeEarth
Max Storage465 acre-ft
Normal Storage193 acre-ft
Surface Area18 acres
Drainage Area1 sq mi
NID IDVA107009

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: October 10, 2021
State Regulated: Yes
Regulatory Agency: Department of Conservation and Recreation

Ownership

Brian Meyerriecks;Timothy Biddle

Private

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Frequently Asked Questions

What is the hazard classification of Daley Dam?

Daley Dam 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 Daley Dam?

Daley Dam is owned by Brian Meyerriecks;Timothy Biddle (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Daley Dam?

Daley Dam 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 Daley Dam?

Daley Dam has a dam height of 29 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 Daley Dam last inspected?

Daley Dam was last inspected on October 10, 2021. 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.