Patterson #1
Key Takeaway
Patterson #1 is classified as low hazard in Colorado. It was completed in 1896 and is 130 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 16 ft (taller than 23.3% in CO) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 84 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 210 cfs |
| Year Completed | 1896 (130 years old) |
| NID ID | CO00921 |
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
LEROUX CREEK WATER USERS ASSOCIATION
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Patterson #1?
Patterson #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 Patterson #1?
Patterson #1 is owned by LEROUX CREEK WATER USERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Patterson #1 built?
Patterson #1 was completed in 1896, making it 130 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 Patterson #1?
Patterson #1 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 Patterson #1?
Patterson #1 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 Patterson #1 last inspected?
Patterson #1 was last inspected on June 27, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.