Johnson Dam No 2
Key Takeaway
Johnson Dam No 2 is classified as low hazard in Texas. It was completed in 1931 and is 95 years old. Its primary use is recreation.
Physical Details
| Dam Height | 20 ft (taller than 33.5% in TX) |
| Dam Length | 100 ft |
| Dam Type | Buttress |
| Max Storage | 150 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1931 (95 years old) |
| NID ID | TX03137 |
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
CITY OF SAN ANGELO
Local Government
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Low Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Johnson Dam No 2?
Johnson Dam No 2 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 Dam No 2?
Johnson Dam No 2 is owned by CITY OF SAN ANGELO (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Johnson Dam No 2 built?
Johnson Dam No 2 was completed in 1931, making it 95 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 Dam No 2?
Johnson Dam No 2 serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Johnson Dam No 2?
Johnson Dam No 2 has a dam height of 20 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 Johnson Dam No 2 last inspected?
Johnson Dam No 2 was last inspected on August 9, 1979. Inspection dates indicate when a formal review occurred, not the results of that inspection.