Johnson Ranch Dam No 1
Key Takeaway
Johnson Ranch Dam No 1 is classified as low hazard in Texas. It was completed in 1972 and is 54 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 26 ft (taller than 55.2% in TX) |
| Dam Length | 329 ft |
| Dam Type | Earth |
| Max Storage | 40 acre-ft |
| Normal Storage | 26 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 120 sq mi |
| Year Completed | 1972 (54 years old) |
| NID ID | TX06684 |
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
MT JOHNSON ET AL
Private
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Low Hazard 50 ftFrequently Asked Questions
What is the hazard classification of Johnson Ranch Dam No 1?
Johnson Ranch Dam No 1 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 Johnson Ranch Dam No 1?
Johnson Ranch Dam No 1 is owned by MT JOHNSON ET AL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Johnson Ranch Dam No 1 built?
Johnson Ranch Dam No 1 was completed in 1972, making it 54 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 Johnson Ranch Dam No 1?
Johnson Ranch Dam No 1 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Johnson Ranch Dam No 1?
Johnson Ranch Dam No 1 has a dam height of 26 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.