Empire Weir No. 1
Key Takeaway
Empire Weir No. 1 is classified as low hazard in California. It was completed in 1906 and is 120 years old. Its primary use is other.
Physical Details
| Dam Height | 18 ft (taller than 12.6% in CA) |
| Dam Length | 77 ft |
| Dam Type | Buttress |
| Max Storage | 50 acre-ft |
| Surface Area | 16 acres |
| Year Completed | 1906 (120 years old) |
| NID ID | CA00714 |
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
Empire Westside Irrigation District
Public Utility
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Empire Weir No. 1?
Empire Weir 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 Empire Weir No. 1?
Empire Weir No. 1 is owned by Empire Westside Irrigation District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Empire Weir No. 1 built?
Empire Weir No. 1 was completed in 1906, making it 120 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 Empire Weir No. 1?
Empire Weir No. 1 serves the following purposes: Other, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Empire Weir No. 1?
Empire Weir No. 1 has a dam height of 18 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 Empire Weir No. 1 last inspected?
Empire Weir No. 1 was last inspected on May 27, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.