Cone Johnson Dam
Key Takeaway
Cone Johnson Dam is classified as low hazard in Texas. It was completed in 1971 and is 55 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 17 ft (taller than 23.1% in TX) |
| Dam Length | 570 ft |
| Dam Type | Earth |
| Max Storage | 372 acre-ft |
| Normal Storage | 173 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1971 (55 years old) |
| NID ID | TX03714 |
Safety Information
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?
Ownership
JOHNSON CONE JOHNSON EDITH AND JOHNSON RANDY
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Cone Johnson Dam?
Cone Johnson Dam 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 Cone Johnson Dam?
Cone Johnson Dam is owned by JOHNSON CONE JOHNSON EDITH AND JOHNSON RANDY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cone Johnson Dam built?
Cone Johnson Dam was completed in 1971, making it 55 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 Cone Johnson Dam?
Cone Johnson Dam serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Cone Johnson Dam?
Cone Johnson Dam has a dam height of 17 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 Cone Johnson Dam last inspected?
Cone Johnson Dam was last inspected on July 14, 1971. Inspection dates indicate when a formal review occurred, not the results of that inspection.