Zimmerhanzel Lake Dam

TR-BRUSHY CREEK· Williamson, Texas· Built 1968· Earth· 19 ft tall
Significant Hazard Recreation Private

Key Takeaway

Zimmerhanzel Lake Dam is classified as significant hazard in Texas. It was completed in 1968 and is 58 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 19 ft (taller than 30.6% in TX)
Dam Length600 ft
Dam TypeEarth
Max Storage304 acre-ft
Normal Storage187 acre-ft
Surface Area26 acres
Drainage Area0 sq mi
Max Discharge775 cfs
Year Completed1968 (58 years old)
NID IDTX01324

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 31, 2018
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

LOOKOUT AT BRUSHY CREEK POA

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Zimmerhanzel Lake Dam?

Zimmerhanzel Lake 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 Zimmerhanzel Lake Dam?

Zimmerhanzel Lake Dam is owned by LOOKOUT AT BRUSHY CREEK POA (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Zimmerhanzel Lake Dam built?

Zimmerhanzel Lake Dam was completed in 1968, making it 58 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 Zimmerhanzel Lake Dam?

Zimmerhanzel Lake 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 Zimmerhanzel Lake Dam?

Zimmerhanzel Lake Dam has a dam height of 19 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 Zimmerhanzel Lake Dam last inspected?

Zimmerhanzel Lake Dam was last inspected on October 31, 2018. 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.