Johnson Dam is an earth dam located in Blount County, Tennessee, built in 2000. It carries a Significant hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall, taller than 68% 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 Johnson Dam
The primary purpose of Johnson Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Johnson, Mike (private). It impounds the Trib-mook Creek.
The dam stands 30 feet tall, creates a reservoir covering 8 acres, and has a maximum storage capacity of 100 acre-feet. Completed in 2000, the structure is 26 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. The most recent inspection on record was 07/27/2021.
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Location
| State | Tennessee |
| County | Blount |
| River/Stream | Trib-mook Creek |
| Coordinates | 35.68778, -83.89694 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Year Completed | 2000 (26 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Surface Area | 8 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Johnson, Mike |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 07/27/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN00905 |
| Federal ID | TN00905 |
| More Info | State Dam Safety Program |