Allen No.2
Key Takeaway
Allen No.2 is classified as low hazard in Oklahoma. It was completed in 1977 and is 49 years old. Its primary use is other.
Physical Details
| Dam Height | 28 ft (taller than 47.3% in OK) |
| Dam Length | 570 ft |
| Dam Type | Earth |
| Max Storage | 160 acre-ft |
| Normal Storage | 40 acre-ft |
| Max Discharge | 500 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | OK21127 |
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
RYAN AND ANALISA MURRAY
Private
Nearby Dams
Oknoname 049004
Garvin, OK
Low Hazard 20 ftAllen No.1
Garvin, OK
Low Hazard 25 ftSCS-Washington Creek Site-1
Garvin, OK
High Hazard 40 ftOknoname 087047
McClain, OK
Low Hazard 23 ftSCS-Washington Creek Site-2
Garvin, OK
Low Hazard 40 ftSCS-Owl Creek Site-15
McClain, OK
Low Hazard 20 ftSCS-Owl Creek Site-14
McClain, OK
Low Hazard 19 ftOknoname 049005
Garvin, OK
Low Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Allen No.2?
Allen No.2 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 Allen No.2?
Allen No.2 is owned by RYAN AND ANALISA MURRAY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Allen No.2 built?
Allen No.2 was completed in 1977, making it 49 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 Allen No.2?
Allen No.2 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Allen No.2?
Allen No.2 has a dam height of 28 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 Allen No.2 last inspected?
Allen No.2 was last inspected on April 22, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.