Nfa 910 (sa 4302) over Duck River
PoorPosted for loadHumphreys County, Tennessee · 3 M. W. SR 13 · Structure no. 430A3160001
- Built
- 1945
- 80 years old
- Condition
- Poor
- inspected March 2024
- Type
- Truss - Thru
- Steel
- Length
- 749 ft
- 1 main span
- Daily traffic
- 601
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 910 (sa 4302) over Duck River is a steel truss - thru carrying Nfa 910 (sa 4302) over Duck River in Humphreys County, Tennessee. It was built in 1945, so it is 80 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 601 vehicles a day, roughly 3% of them trucks, projected to reach 962 by 2042. The structure is 749 ft (228.3 m) long and 21 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa 910 (sa 4302) over Duck River built?
It was built in 1945, making it 80 years old in 2025.
What condition is Nfa 910 (sa 4302) over Duck 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 March 2024.
How much traffic does Nfa 910 (sa 4302) over Duck River carry?
About 601 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Nfa 910 (sa 4302) over Duck River?
The structure is 749 ft (228.3 m) long with a longest span of 212 ft (64.6 m) and a deck 21 ft wide.
Who owns Nfa 910 (sa 4302) over Duck River?
It is owned by the County Highway Agency.