Lone Man Dam

LONE MAN CREEK· Hays, Texas· Buttress· 13 ft tall
Significant Hazard Private

Key Takeaway

Lone Man Dam is classified as significant hazard in Texas. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 13 ft (taller than 10.2% in TX)
Dam Length120 ft
Dam TypeButtress
Max Storage18 acre-ft
Normal Storage18 acre-ft
Surface Area3 acres
Drainage Area6 sq mi
Max Discharge17,000 cfs
NID IDTX09436

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 13, 2009
State Regulated: No

Ownership

RED HAWK RD ASSOCIATION

Private

Nearby Dams

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Hog Creek Dam

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Lake Laurel Dam

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Brown Ranch Dam

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Lutringer Lake Dam

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Clear Lake Dam

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Upper San Marcos River WS SCS Site 2

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Upper San Marcos River WS SCS Site 1

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High Hazard 80 ft

Frequently Asked Questions

What is the hazard classification of Lone Man Dam?

Lone Man 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 Lone Man Dam?

Lone Man Dam is owned by RED HAWK RD ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

How tall is Lone Man Dam?

Lone Man Dam has a dam height of 13 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 Lone Man Dam last inspected?

Lone Man Dam was last inspected on July 13, 2009. 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.