South Fork Mccorkle Creek Detention Dam
Key Takeaway
South Fork Mccorkle Creek Detention Dam is classified as high hazard in Washington. It was completed in 1989 and is 37 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Length | 625 ft |
| Dam Type | Earth |
| Max Storage | 322 acre-ft |
| Normal Storage | 159 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,100 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | WA00585 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Cowlitz Cnty
Local Government
Nearby Dams
Coweeman Gravel Pit No. 2 Dam
Cowlitz, WA
Low HazardLongview Sewage Lagoon No 4
Cowlitz, WA
Low HazardLongview Sewage Lagoon No 3
Cowlitz, WA
Low HazardLongview Sewage Lagoon No 1
Cowlitz, WA
Low HazardLongview Sewage Lagoon No 2
Cowlitz, WA
Low HazardRainier City Reservoir
Columbia, OR
Significant Hazard 25 ftHeadquarters Landfill Leachate Pond
Cowlitz, WA
Significant HazardSilver Lake Dam
Cowlitz, WA
Low HazardFrequently Asked Questions
What is the hazard classification of South Fork Mccorkle Creek Detention Dam?
South Fork Mccorkle Creek Detention Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates South Fork Mccorkle Creek Detention Dam?
South Fork Mccorkle Creek Detention Dam is owned by Cowlitz Cnty (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was South Fork Mccorkle Creek Detention Dam built?
South Fork Mccorkle Creek Detention Dam was completed in 1989, making it 37 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 South Fork Mccorkle Creek Detention Dam?
South Fork Mccorkle Creek Detention Dam 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.
When was South Fork Mccorkle Creek Detention Dam last inspected?
South Fork Mccorkle Creek Detention Dam was last inspected on September 13, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.