Middlemist
Key Takeaway
Middlemist is classified as low hazard in Colorado. It was completed in 1907 and is 119 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 22 ft (taller than 43.8% in CO) |
| Dam Length | 635 ft |
| Dam Type | Earth |
| Max Storage | 260 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 28,000 cfs |
| Year Completed | 1907 (119 years old) |
| NID ID | CO02317 |
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
METRO WASTEWATER RECLAMATION DISTRICT (DREXEL DISB
Public Utility
Frequently Asked Questions
What is the hazard classification of Middlemist?
Middlemist 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 Middlemist?
Middlemist is owned by METRO WASTEWATER RECLAMATION DISTRICT (DREXEL DISB (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Middlemist built?
Middlemist was completed in 1907, making it 119 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 Middlemist?
Middlemist serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Middlemist?
Middlemist has a dam height of 22 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 Middlemist last inspected?
Middlemist was last inspected on December 1, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.