South Holston Left Channel Reregulation Weir
South Holston Left Channel Reregulation Weir is an other dam located in Sullivan County, Tennessee, built in 1991. It carries a High hazard potential classification.
About South Holston Left Channel Reregulation Weir
South Holston Left Channel Reregulation Weir is a dam in Sullivan, Tennessee. The dam is owned by Tva (federal). It impounds the South Fork Holston River near Bluff City.
The dam stands 12 feet tall and stretches 1,556 feet across, creates a reservoir covering 33 acres, has a maximum storage capacity of 250 acre-feet, and collects water from a drainage area of 704 square miles. Completed in 1991, the structure is 35 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 07/29/2024.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Tennessee dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Tennessee |
| County | Sullivan |
| Nearest City | Bluff City |
| River/Stream | South Fork Holston River |
| Coordinates | 36.52456, -82.10915 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 12 ft |
| Dam Height | 10 ft |
| Dam Length | 1,556 ft |
| Year Completed | 1991 (35 years old) |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Max Storage | 250 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 33 acres |
| Drainage Area | 704 sq mi |
| Max Discharge | 68,400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | TVA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 07/29/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TN16314 |
| Federal ID | TN16314 |
| More Info | State Dam Safety Program |