Nfa 4701 over Martin Creek
FairUnicoi County, Tennessee · In Erwin · Structure no. 860A4000005
- Built
- 1928
- 97 years old, rebuilt 1983
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 33 ft
- 1 main span
- Daily traffic
- 3,743
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Nfa 4701 over Martin Creek is a steel stringer/multi-beam or girder carrying Nfa 4701 over Martin Creek in Unicoi County, Tennessee. It was built in 1928 and reconstructed in 1983, so it is 97 years old, older than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 3,743 vehicles a day, roughly 4% of them trucks, projected to reach 7,616 by 2041. The structure is 33 ft (10 m) long and 62 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa 4701 over Martin Creek built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1983.
What condition is Nfa 4701 over Martin Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.
How much traffic does Nfa 4701 over Martin Creek carry?
About 3,743 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Nfa 4701 over Martin Creek?
The structure is 33 ft (10 m) long with a longest span of 29 ft (8.8 m) and a deck 62 ft wide.
Who owns Nfa 4701 over Martin Creek?
It is owned by the City or Municipal Highway Agency.