Wright Dam No 4

TR-RIO GRANDE· Webb, Texas· Built 1911· Earth· 14 ft tall
Low Hazard Water Supply Private

Key Takeaway

Wright Dam No 4 is classified as low hazard in Texas. It was completed in 1911 and is 115 years old. Its primary use is water supply.

Physical Details

Dam Height 14 ft (taller than 12.5% in TX)
Dam Length650 ft
Dam TypeEarth
Max Storage147 acre-ft
Normal Storage27 acre-ft
Surface Area0 acres
Drainage Area0 sq mi
Year Completed1911 (115 years old)
NID IDTX02254

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: June 13, 1978
State Regulated: No

Ownership

DR LA WRIGHT ET AL

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wright Dam No 4?

Wright Dam No 4 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Wright Dam No 4?

Wright Dam No 4 is owned by DR LA WRIGHT ET AL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wright Dam No 4 built?

Wright Dam No 4 was completed in 1911, making it 115 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 Wright Dam No 4?

Wright Dam No 4 serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Wright Dam No 4?

Wright Dam No 4 has a dam height of 14 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 Wright Dam No 4 last inspected?

Wright Dam No 4 was last inspected on June 13, 1978. 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.