Upper Mulberry River WS Str.
Wind
Humidity
# 7, also known as Duncan Lake Dam, is a significant structure located in Gwinnett, Georgia. Owned by the local government and regulated by the GA-SAFE DAMS PROGRAM, this earth dam stands at a height of 44.4 feet and was completed in 1980 for the primary purpose of flood risk reduction along Duncan Creek.
With a storage capacity of 1796 acre-feet, this dam has a high hazard potential and is subject to regular inspections, with the last assessment in March 2017 deeming its condition satisfactory. The dam features uncontrolled spillways and outlet gates, emphasizing its crucial role in managing floodwaters and protecting the surrounding area from potential inundation. Despite its moderate risk rating, the dam continues to serve as a key infrastructure for water resource management in the region.
As part of the larger network of dams and structures in the area, Upper Mulberry River WS Str. # 7 plays a vital role in mitigating flood risks and ensuring the safety of downstream communities. With its strategic location and design by NRCS, this dam stands as a testament to effective water resource management and climate resilience efforts in Georgia. As climate change continues to impact water resources, structures like Duncan Lake Dam will play an increasingly important role in safeguarding communities and ecosystems from the threats of extreme weather events.
Year Completed |
1980 |
Dam Height |
44.4 |
River Or Stream |
DUNCAN CREEK |
Primary Dam Type |
Earth |
Nid Storage |
1796 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
44 |