Nfa 1620 over Old Knob Creek
GoodWeakley County, Tennessee · 3 M NW of Austin Springs · Structure no. 92016200013
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected October 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 34 ft
- 2 main spans
- Daily traffic
- 283
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 1620 over Old Knob Creek is a concrete continuous culvert carrying Nfa 1620 over Old Knob Creek in Weakley County, Tennessee. It was built in 2004, so it is 21 years old, younger than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 283 vehicles a day, roughly 3% of them trucks, projected to reach 240 by 2040. The structure is 34 ft (10.4 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa 1620 over Old Knob Creek built?
It was built in 2004, making it 21 years old in 2025.
What condition is Nfa 1620 over Old Knob Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.
How much traffic does Nfa 1620 over Old Knob Creek carry?
About 283 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Nfa 1620 over Old Knob Creek?
The structure is 34 ft (10.4 m) long with a longest span of 14 ft (4.3 m) and a deck 29 ft wide.
Who owns Nfa 1620 over Old Knob Creek?
It is owned by the County Highway Agency.