The Clemson Lower Diversion Dam, located in South Carolina, plays a crucial role in flood risk reduction along the Seneca River.
Wind
Humidity
Constructed in 1961 by the US Army Corps of Engineers, this earth dam stands at 75 feet high and spans 3000 feet in length, with a storage capacity of 3,438,700 acre-feet. The dam, along with the Upper Diversion Dam, protects lower elevations of Clemson University from potential flooding by Lake Hartwell.
To mitigate risks associated with seepage and potential embankment failures, the dams have undergone significant modifications over the years, including the installation of concrete cutoff walls and seismic shear walls. Despite these improvements, the Clemson Lower Diversion Dam Saddle Dike poses a moderate risk of failure due to the potential for seepage-induced erosion in the foundation soils. Additionally, there is a small flood risk associated with the USACE pumping station, which may become overwhelmed during heavy rain events, impacting low-lying areas of the university campus.
To manage these risks, the USACE has implemented various measures, including regular inspections, emergency action planning, and coordination with local and state emergency managers. By closely monitoring the dams and pumping station operations, the USACE aims to ensure the continued functionality and safety of the Clemson Lower Diversion Dam and associated structures, providing crucial flood protection for the surrounding area.
Year Completed |
1961 |
Dam Length |
3000 |
Dam Height |
75 |
River Or Stream |
SENECA RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
69 |
Drainage Area |
2088 |
Nid Storage |
3438700 |
Structural Height |
60 |
Outlet Gates |
None - 0 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
75 |
Twelvemile Creek Near Liberty
|
85cfs |
Saluda River Near Williamston
|
458cfs |
Saluda River Near Greenville
|
348cfs |
Rocky River Nr Starr
|
58cfs |
Chattooga River Near Clayton
|
301cfs |
Reedy River Near Greenville
|
36cfs |
| Location | Reservations | Toilets |
|---|---|---|
Twin Lakes - Hartwell Lake
|
||
Oconee Point - Hartwell Lake
|
||
Coneross - Hartwell Lake
|
||
South Cove
|
||
South Cove County Park
|
||
High Falls County Park
|