Knapp Lake Dam

TR-BIG FOSSIL CREEK· Tarrant, Texas· Built 1930· Earth· 30 ft tall
High Hazard Recreation State Government

Key Takeaway

Knapp Lake Dam is classified as high hazard in Texas. It was completed in 1930 and is 96 years old. 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 30 ft (taller than 67.1% in TX)
Dam Length500 ft
Dam TypeEarth
Max Storage154 acre-ft
Normal Storage50 acre-ft
Surface Area10 acres
Drainage Area1 sq mi
Max Discharge960 cfs
Year Completed1930 (96 years old)
NID IDTX00782

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: February 26, 2019
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

TEXAS DEPARTMENT OF TRANSPORTATION

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Knapp Lake Dam?

Knapp Lake Dam 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 Knapp Lake Dam?

Knapp Lake Dam is owned by TEXAS DEPARTMENT OF TRANSPORTATION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Knapp Lake Dam built?

Knapp Lake Dam was completed in 1930, making it 96 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 Knapp Lake Dam?

Knapp 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 Knapp Lake Dam?

Knapp Lake Dam has a dam height of 30 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 Knapp Lake Dam last inspected?

Knapp Lake Dam was last inspected on February 26, 2019. 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.