Marshall
Key Takeaway
Marshall is classified as low hazard in Colorado. It was completed in 1904 and is 122 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 26 ft (taller than 56.3% in CO) |
| Dam Length | 547 ft |
| Dam Type | Earth |
| Max Storage | 98 acre-ft |
| Normal Storage | 32 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,934 cfs |
| Year Completed | 1904 (122 years old) |
| NID ID | CO01127 |
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 THORNTON
Local Government
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High Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Marshall?
Marshall 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 Marshall?
Marshall is owned by CITY OF THORNTON (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Marshall built?
Marshall was completed in 1904, making it 122 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 Marshall?
Marshall serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Marshall?
Marshall has a dam height of 26 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 Marshall last inspected?
Marshall was last inspected on April 15, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.