Three and Twenty Creek WCD Dam-Griffis 9b
Key Takeaway
Three and Twenty Creek WCD Dam-Griffis 9b is classified as high hazard in South Carolina. It was completed in 1968 and is 58 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 Height | 37 ft (taller than 89.9% in SC) |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 181 acre-ft |
| Surface Area | 37 acres |
| Year Completed | 1968 (58 years old) |
| NID ID | SC00553 |
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
RANDALL M GRIFFIS;THREE AND TWENTY CREEK WATERSHED CONSERVATION DISTRICT
Private
Nearby Dams
Norman Canoy Dam
Anderson, SC
Unknown 13 ftFred Linsley Dam
Pickens, SC
Low Hazard 32 ftGillespie Smaller Dam
Anderson, SC
Unknown 16 ftHopkins Pond Dam
Anderson, SC
Low Hazard 23 ftMullikin Pond Dam
Anderson, SC
Significant Hazard 21 ftSimpson Station Pond Dam 1
Anderson, SC
Low Hazard 34 ftSimpson Station Pond Dam 2
Anderson, SC
Low Hazard 26 ftHt Double Pond Dam
Anderson, SC
Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Three and Twenty Creek WCD Dam-Griffis 9b?
Three and Twenty Creek WCD Dam-Griffis 9b 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 Three and Twenty Creek WCD Dam-Griffis 9b?
Three and Twenty Creek WCD Dam-Griffis 9b is owned by RANDALL M GRIFFIS;THREE AND TWENTY CREEK WATERSHED CONSERVATION DISTRICT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Three and Twenty Creek WCD Dam-Griffis 9b built?
Three and Twenty Creek WCD Dam-Griffis 9b was completed in 1968, making it 58 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 Three and Twenty Creek WCD Dam-Griffis 9b?
Three and Twenty Creek WCD Dam-Griffis 9b 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 Three and Twenty Creek WCD Dam-Griffis 9b?
Three and Twenty Creek WCD Dam-Griffis 9b has a dam height of 37 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 Three and Twenty Creek WCD Dam-Griffis 9b last inspected?
Three and Twenty Creek WCD Dam-Griffis 9b was last inspected on March 2, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.