Lynchburg Reservoir Dam

OFF CH-SAN JACINTO RIVER· Harris, Texas· Built 1976· Earth· 35 ft tall
High Hazard Local Government

Key Takeaway

Lynchburg Reservoir Dam is classified as high hazard in Texas. It was completed in 1976 and is 50 years old. 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 35 ft (taller than 77.6% in TX)
Dam Length15,315 ft
Dam TypeEarth
Max Storage5.2K acre-ft
Normal Storage4.7K acre-ft
Surface Area200 acres
Drainage Area0 sq mi
Year Completed1976 (50 years old)
NID IDTX03413

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

COASTAL WATER AUTHORITY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lynchburg Reservoir Dam?

Lynchburg Reservoir 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 Lynchburg Reservoir Dam?

Lynchburg Reservoir Dam is owned by COASTAL WATER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lynchburg Reservoir Dam built?

Lynchburg Reservoir Dam was completed in 1976, making it 50 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

How tall is Lynchburg Reservoir Dam?

Lynchburg Reservoir Dam has a dam height of 35 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 Lynchburg Reservoir Dam last inspected?

Lynchburg Reservoir 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.