Nfa 1433 (sa 2308) over Overflow
PoorPosted for loadDyer County, Tennessee · 4.6 MI NE JCT SR78&SR103 · Structure no. 23S80050007
- Built
- 1957
- 68 years old
- Condition
- Poor
- inspected October 2023
- Type
- Tee Beam
- Concrete
- Length
- 399 ft
- 14 main spans
- Daily traffic
- 730
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 1433 (sa 2308) over Overflow is a concrete tee beam carrying Nfa 1433 (sa 2308) over Overflow in Dyer County, Tennessee. It was built in 1957, 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. Its operating status is: posted for load restriction.
It carries about 730 vehicles a day, roughly 3% of them trucks, projected to reach 1,365 by 2042. The structure is 399 ft (121.6 m) long and 29 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Overflow built?
It was built in 1957, making it 68 years old in 2025.
What condition is Nfa 1433 (sa 2308) 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 October 2023.
How much traffic does Nfa 1433 (sa 2308) over Overflow carry?
About 730 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Nfa 1433 (sa 2308) over Overflow?
The structure is 399 ft (121.6 m) long with a longest span of 29 ft (8.7 m) and a deck 29 ft wide.
Who owns Nfa 1433 (sa 2308) over Overflow?
It is owned by the County Highway Agency.