Nfa B023 over Knob Creek
PoorPosted for loadMaury County, Tennessee · 3 M. Se. Santa Fe. · Structure no. 600B0230001
- Built
- 1945
- 80 years old
- Condition
- Poor
- inspected April 2024
- Type
- Tee Beam
- Concrete
- Length
- 35 ft
- 1 main span
- Daily traffic
- 200
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa B023 over Knob Creek is a concrete tee beam carrying Nfa B023 over Knob Creek in Maury 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 320 by 2042. The structure is 35 ft (10.8 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 B023 over Knob Creek built?
It was built in 1945, making it 80 years old in 2025.
What condition is Nfa B023 over Knob Creek 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 April 2024.
How much traffic does Nfa B023 over Knob Creek carry?
About 200 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa B023 over Knob Creek?
The structure is 35 ft (10.8 m) long with a longest span of 34 ft (10.5 m) and a deck 21 ft wide.
Who owns Nfa B023 over Knob Creek?
It is owned by the County Highway Agency.