Nfa A743 over Duffy Branch
PoorClosed to trafficGibson County, Tennessee · 1.6 MI NW JCT SR5&SR152 · Structure no. 270A7430003
- Built
- 1993
- 32 years old
- Condition
- Poor
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 31 ft
- 1 main span
- Daily traffic
- 50
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A743 over Duffy Branch is a steel stringer/multi-beam or girder carrying Nfa A743 over Duffy Branch in Gibson County, Tennessee. It was built in 1993, so it is 32 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 3 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: closed to all traffic.
It carries about 50 vehicles a day, roughly 2% of them trucks, projected to reach 80 by 2041. The structure is 31 ft (9.4 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A743 over Duffy Branch built?
It was built in 1993, making it 32 years old in 2025.
What condition is Nfa A743 over Duffy Branch 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 August 2023.
How much traffic does Nfa A743 over Duffy Branch carry?
About 50 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A743 over Duffy Branch?
The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 24 ft wide.
Who owns Nfa A743 over Duffy Branch?
It is owned by the County Highway Agency.