Nfa A122 over Johnson Creek
GoodDickson County, Tennessee · 1 M. W. SR49. · Structure no. 220A1970001
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 50 ft
- 3 main spans
- Daily traffic
- 70
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A122 over Johnson Creek is a concrete continuous culvert carrying Nfa A122 over Johnson Creek in Dickson County, Tennessee. It was built in 1986, so it is 39 years old, younger than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 70 vehicles a day, roughly 2% of them trucks, projected to reach 112 by 2040. The structure is 50 ft (15.2 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A122 over Johnson Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is Nfa A122 over Johnson Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.
How much traffic does Nfa A122 over Johnson Creek carry?
About 70 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A122 over Johnson Creek?
The structure is 50 ft (15.2 m) long with a longest span of 15 ft (4.6 m) and a deck 27 ft wide.
Who owns Nfa A122 over Johnson Creek?
It is owned by the County Highway Agency.