Shell Lake
Key Takeaway
Shell Lake is classified as low hazard in Oklahoma. It was completed in 1915 and is 111 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 30 ft (taller than 54.9% in OK) |
| Dam Length | 1,000 ft |
| Dam Type | Gravity |
| Max Storage | 1.1K acre-ft |
| Normal Storage | 575 acre-ft |
| Surface Area | 20 acres |
| Max Discharge | 2,200 cfs |
| Year Completed | 1915 (111 years old) |
| NID ID | OK00667 |
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
GEORGE H GIGER & JUDY DUNCAN
Private
Nearby Dams
Mark Overton Gss # 1
Garfield, OK
Low Hazard 22 ftOknoname 22266
Logan, OK
Low Hazard 27 ftOknoname 22265
Logan, OK
Low Hazard 29 ftOknoname 083041
Logan, OK
Low Hazard 27 ftSCS-Upper Black Bear Creek Site-48
Garfield, OK
Significant Hazard 53 ftSCS-Upper Black Bear Creek Site-49
Garfield, OK
Significant Hazard 44 ftSCS-Upper Black Bear Creek Site-42
Garfield, OK
Low Hazard 35 ftSCS-Upper Black Bear Creek Site-43
Garfield, OK
Low Hazard 42 ftFrequently Asked Questions
What is the hazard classification of Shell Lake?
Shell Lake 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 Shell Lake?
Shell Lake is owned by GEORGE H GIGER & JUDY DUNCAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Shell Lake built?
Shell Lake was completed in 1915, making it 111 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 Shell Lake?
Shell Lake serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Shell Lake?
Shell Lake has a dam height of 30 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 Shell Lake last inspected?
Shell Lake was last inspected on December 14, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.