Nfa A407 over Cosby Creek
PoorPosted for loadCocke County, Tennessee · E of SR73-SR32 Jct-Cosby · Structure no. 150A4070001
- Built
- 1984
- 41 years old
- Condition
- Poor
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 33 ft
- 2 main spans
- Daily traffic
- 1,370
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A407 over Cosby Creek is a concrete continuous slab carrying Nfa A407 over Cosby Creek in Cocke County, Tennessee. It was built in 1984, so it is 41 years old, younger than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 1,370 vehicles a day, roughly 2% of them trucks, projected to reach 2,192 by 2042. The structure is 33 ft (10.1 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A407 over Cosby Creek built?
It was built in 1984, making it 41 years old in 2025.
What condition is Nfa A407 over Cosby Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does Nfa A407 over Cosby Creek carry?
About 1,370 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A407 over Cosby Creek?
The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m) and a deck 28 ft wide.
Who owns Nfa A407 over Cosby Creek?
It is owned by the County Highway Agency.