Susan Branch #1 Dam
Susan Branch #1 Dam is an earth dam located in Henderson County, Tennessee, built in 1977. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Susan Branch #1 Dam
Susan Branch #1 Dam is a dam in Henderson, Tennessee. The dam is owned by Wtrba (state). It impounds the Susan Branch near Cedar Grove.
The dam stands 20 feet tall and stretches 670 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 330 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 03/18/2025.
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Location
| State | Tennessee |
| County | Henderson |
| Nearest City | Cedar Grove |
| River/Stream | Susan Branch |
| Coordinates | 35.79806, -88.54583 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Length | 670 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 330 acre-ft |
| Max Storage | 330 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Wtrba |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/18/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN07715 |
| Federal ID | TN07715 |
| More Info | State Dam Safety Program |