Rockwall-Forney Dam
Key Takeaway
Rockwall-Forney Dam is classified as high hazard in Texas. It was completed in 1969 and is 57 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 68 ft (taller than 97.9% in TX) |
| Dam Length | 12,500 ft |
| Dam Type | Earth |
| Max Storage | 575.0K acre-ft |
| Normal Storage | 452.0K acre-ft |
| Surface Area | 22,745 acres |
| Drainage Area | 1,071 sq mi |
| Max Discharge | 375,000 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | TX00837 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF DALLAS
Local Government
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Low Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Rockwall-Forney Dam?
Rockwall-Forney Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Rockwall-Forney Dam?
Rockwall-Forney Dam is owned by CITY OF DALLAS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rockwall-Forney Dam built?
Rockwall-Forney Dam was completed in 1969, making it 57 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 Rockwall-Forney Dam?
Rockwall-Forney Dam 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 Rockwall-Forney Dam?
Rockwall-Forney Dam has a dam height of 68 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 Rockwall-Forney Dam last inspected?
Rockwall-Forney Dam was last inspected on September 8, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.