Nfa 1433 (sa 2308) over Obion River
PoorDyer County, Tennessee · 1 MI S of Obion CO · Structure no. 23S80050011
- Built
- 1957
- 68 years old, rebuilt 1974
- Condition
- Poor
- inspected October 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 381 ft
- 3 main spans
- Daily traffic
- 730
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 1433 (sa 2308) over Obion River is a prestressed concrete box beam or girders - single or spread carrying Nfa 1433 (sa 2308) over Obion River in Dyer County, Tennessee. It was built in 1957 and reconstructed in 1974, so it is 68 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.
It carries about 730 vehicles a day, roughly 3% of them trucks, projected to reach 1,365 by 2042. The structure is 381 ft (116.1 m) long and 36 ft wide. If it were closed, the detour would be 21.7 mi (35 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa 1433 (sa 2308) over Obion River built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1974.
What condition is Nfa 1433 (sa 2308) over Obion River 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 October 2023.
How much traffic does Nfa 1433 (sa 2308) over Obion River carry?
About 730 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Nfa 1433 (sa 2308) over Obion River?
The structure is 381 ft (116.1 m) long with a longest span of 90 ft (27.4 m) and a deck 36 ft wide.
Who owns Nfa 1433 (sa 2308) over Obion River?
It is owned by the County Highway Agency.