Johnston Dam is an earth dam located in Bradley County, Tennessee, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 350 ft long, taller than 50% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Johnston Dam
Johnston Dam is a dam in Bradley, Tennessee. The dam is owned by Johnston, S. K. (private). It impounds the Brymer Creek near Cleveland.
The dam stands 25 feet tall and stretches 350 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 111 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 11/05/2019.
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Location
| State | Tennessee |
| County | Bradley |
| Nearest City | Cleveland |
| River/Stream | Brymer Creek |
| Coordinates | 35.12056, -84.95972 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Length | 350 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 111 acre-ft |
| Max Storage | 111 acre-ft |
| Normal Storage | 71 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Johnston, S. K. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/05/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN01103 |
| Federal ID | TN01103 |
| More Info | State Dam Safety Program |