Lake Houston Dam

SAN JACINTO RIVER· Harris, Texas· Built 1954· Buttress· 66 ft tall
High Hazard Irrigation Other Recreation Water Supply Local Government

Key Takeaway

Lake Houston Dam is classified as high hazard in Texas. It was completed in 1954 and is 72 years old. Its primary use is irrigation. 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 66 ft (taller than 97.8% in TX)
Dam Length12,097 ft
Dam TypeButtress
Max Storage281.8K acre-ft
Normal Storage146.7K acre-ft
Surface Area12,240 acres
Drainage Area2,828 sq mi
Max Discharge525,000 cfs
Year Completed1954 (72 years old)
NID IDTX03416

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: July 11, 2023
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

CITY OF HOUSTON

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Houston Dam?

Lake Houston 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 Lake Houston Dam?

Lake Houston Dam is owned by CITY OF HOUSTON (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Houston Dam built?

Lake Houston Dam was completed in 1954, making it 72 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 Lake Houston Dam?

Lake Houston Dam serves the following purposes: Irrigation, Other, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lake Houston Dam?

Lake Houston Dam has a dam height of 66 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 Lake Houston Dam last inspected?

Lake Houston Dam was last inspected on July 11, 2023. 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.