Built in 1979, this earthen dam stands at a structural height of 98.1 feet and has a hydraulic height of 89.8 feet, impounding the Trail Branch river. With a normal storage capacity of 2400 acre-feet and a maximum storage of 2880 acre-feet, Glastowbury covers a surface area of 53 acres and drains an area of 1.95 square miles.
Managed by the Tennessee Safe Dams Program, Glastowbury is classified as having a significant hazard potential but is currently in satisfactory condition as of the last inspection in October 2020. While the spillway is uncontrolled, the dam has no outlet gates or associated structures. The risk assessment for Glastowbury is moderate (3), indicating a level of risk that warrants attention and management measures to ensure the safety and integrity of the dam.
Located within the Nashville District and under state jurisdiction, Glastowbury serves as a vital recreational resource in the area. Its presence not only provides opportunities for outdoor activities but also highlights the importance of proper dam management and maintenance to mitigate risks and ensure the safety of surrounding communities and the environment.
Year Completed |
1979 |
Dam Length |
570 |
River Or Stream |
TRAIL BRANCH |
Primary Dam Type |
Earth |
Surface Area |
53 |
Hydraulic Height |
89.8 |
Drainage Area |
1.95 |
Nid Storage |
2880 |
Structural Height |
98.1 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Nid Height |
98 |
Daddys Creek Near Hebbertsburg
|
138cfs |
Clear Creek At Lilly Bridge Near Lancing
|
199cfs |
Obed River Near Lancing
|
670cfs |
Emory River At Oakdale
|
872cfs |
Sewee Creek Near Decatur
|
66cfs |
Clear Fork Near Robbins
|
292cfs |