Mansfield Dam

COLORADO RIVER· Travis, Texas· Built 1942· Earth· 277 ft tall
High Hazard Flood Risk Reduction Irrigation Hydroelectric Water Supply Local Government

Physical Details

Dam Height 277 ft (taller than 100% in TX)
Dam Length7,089 ft
Dam TypeEarth
Max Storage3.2M acre-ft
Normal Storage2.0M acre-ft
Surface Area18,929 acres
Drainage Area38,130 sq mi
Max Discharge608,000 cfs
Year Completed1942 (84 years old)
NID IDTX01087

Safety Information

High Hazard

Loss of human life is likely if the dam fails

Emergency Action Plan: Yes
Last Inspection: August 13, 2020
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

LOWER COLORADO RIVER AUTHORITY

Local Government

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Frequently Asked Questions

What is the hazard classification of Mansfield Dam?

Mansfield Dam is classified as High Hazard. Loss of human life is likely if the dam fails.

Who owns Mansfield Dam?

Mansfield Dam is owned by LOWER COLORADO RIVER AUTHORITY (Local Government).

When was Mansfield Dam last inspected?

Mansfield Dam was last inspected on August 13, 2020.

When was Mansfield Dam built?

Mansfield Dam was completed in 1942, making it 84 years old.

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.