O'Donnell is a significant water resource located in Sewanee, Tennessee, with a primary purpose of serving as a Fish and Wildlife Pond.
Wind
Humidity
Managed by the USDA NRCS, this Earth dam structure was completed in 1955 and stands at a height of 28.5 feet, with a hydraulic height of 25.8 feet. With a storage capacity of 180 acre-feet and a surface area of 21 acres, O'Donnell plays a crucial role in supporting the local ecosystem and providing recreational opportunities for the community.
The dam is regulated by the Tennessee Safe Dams Program and undergoes regular inspections to ensure its structural integrity and compliance with state regulations. Despite being classified as having a high hazard potential, O'Donnell's condition was assessed as satisfactory during its last inspection in July 2020. With a moderate risk assessment rating, risk management measures are in place to address any potential issues and ensure the safety of the surrounding area in case of emergencies.
Situated on Barnes Branch and surrounded by the natural beauty of Franklin County, O'Donnell serves as a vital water supply source in addition to its recreational and ecological functions. With its strategic location and importance in the region, O'Donnell stands as a testament to the careful management and stewardship of water resources in Tennessee, making it a key site for water resource and climate enthusiasts to explore and appreciate.
Year Completed |
1955 |
Dam Length |
790 |
River Or Stream |
BARNES BRANCH |
Primary Dam Type |
Earth |
Surface Area |
21 |
Hydraulic Height |
25.8 |
Drainage Area |
0.27 |
Nid Storage |
180 |
Structural Height |
28.5 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
29 |