Dam No 3
Key Takeaway
Dam No 3 is classified as high hazard in Texas. It was completed in 1948 and is 78 years old. Its primary use is irrigation. 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 | 16 ft (taller than 19.7% in TX) |
| Dam Length | 58 ft |
| Dam Type | Gravity |
| Max Storage | 673 acre-ft |
| Normal Storage | 405 acre-ft |
| Surface Area | 114 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,751 cfs |
| Year Completed | 1948 (78 years old) |
| NID ID | TX01557 |
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 SUGAR LAND;GULF COAST WATER AUTHORITY
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Dam No 3?
Dam No 3 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 Dam No 3?
Dam No 3 is owned by CITY OF SUGAR LAND;GULF COAST WATER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dam No 3 built?
Dam No 3 was completed in 1948, making it 78 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 Dam No 3?
Dam No 3 serves the following purposes: Irrigation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Dam No 3?
Dam No 3 has a dam height of 16 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 Dam No 3 last inspected?
Dam No 3 was last inspected on March 19, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.