Flint Ridge Dam, also known as Hillsborough Crossing Dam, is a privately owned structure located in Orange County, North Carolina.
Wind
Humidity
Completed in 1990, this earth-type dam serves primarily for flood risk reduction along the Eno River-Tr. With a hydraulic height of 16 feet and a structural height of 19 feet, the dam has a storage capacity of 22 acre-feet and covers a surface area of 2.6 acres.
Despite its fair condition assessment and high hazard potential, Flint Ridge Dam is regularly inspected, regulated, and enforced by the North Carolina Department of Environmental Quality's Dam Safety Program. The dam's purpose extends beyond flood risk reduction to include recreational opportunities for the local community. With a normal storage capacity of 13.5 acre-feet and a drainage area of 80 square miles, the dam plays a crucial role in managing water resources in the region.
Located in the city of Hillsborough, Flint Ridge Dam has a maximum discharge capacity of 518.5 cubic feet per second and a length of 320 feet. While it lacks associated lock structures, the dam's design and construction adhere to state permitting and inspection requirements. As water resource and climate change enthusiasts, the ongoing monitoring and management of Flint Ridge Dam showcases the importance of sustainable infrastructure for safeguarding communities and ecosystems against the impacts of extreme weather events.
Year Completed |
1990 |
Dam Length |
320 |
River Or Stream |
Eno River-Tr |
Primary Dam Type |
Earth |
Surface Area |
2.6 |
Hydraulic Height |
16 |
Drainage Area |
80 |
Nid Storage |
22 |
Structural Height |
19 |
Hazard Potential |
High |
Nid Height |
19 |