Nfa A431 over Overflow
PoorPosted for loadObion County, Tennessee · 2.5 MI E JCT SR5&SR21 · Structure no. 660A4310003
- Built
- 1970
- 55 years old
- Condition
- Poor
- inspected March 2023
- Type
- Channel Beam
- Concrete
- Length
- 29 ft
- 1 main span
- Daily traffic
- 170
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A431 over Overflow is a concrete channel beam carrying Nfa A431 over Overflow in Obion County, Tennessee. It was built in 1970, so it is 55 years old, older 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 170 vehicles a day, roughly 4% of them trucks, projected to reach 272 by 2041. The structure is 29 ft (8.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A431 over Overflow built?
It was built in 1970, making it 55 years old in 2025.
What condition is Nfa A431 over Overflow 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 March 2023.
How much traffic does Nfa A431 over Overflow carry?
About 170 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is Nfa A431 over Overflow?
The structure is 29 ft (8.7 m) long with a longest span of 29 ft (8.7 m) and a deck 26 ft wide.
Who owns Nfa A431 over Overflow?
It is owned by the County Highway Agency.