Nfa 1256 (sa 4716) over Knob Fork Creek
GoodKnox County, Tennessee · Central Ave-E of I75 · Structure no. 47S24100005
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 70 ft
- 3 main spans
- Daily traffic
- 8,099
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Nfa 1256 (sa 4716) over Knob Fork Creek is a concrete continuous culvert carrying Nfa 1256 (sa 4716) over Knob Fork Creek in Knox County, Tennessee. It was built in 2006, so it is 19 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 8,099 vehicles a day, roughly 4% of them trucks, projected to reach 13,008 by 2040. The structure is 70 ft (21.3 m) long and 59 ft wide. If it were closed, the detour would be 5 mi (8 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 | 8 Very Good | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa 1256 (sa 4716) over Knob Fork Creek built?
It was built in 2006, making it 19 years old in 2025.
What condition is Nfa 1256 (sa 4716) over Knob Fork 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 June 2024.
How much traffic does Nfa 1256 (sa 4716) over Knob Fork Creek carry?
About 8,099 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Nfa 1256 (sa 4716) over Knob Fork Creek?
The structure is 70 ft (21.3 m) long with a longest span of 23 ft (6.9 m) and a deck 59 ft wide.
Who owns Nfa 1256 (sa 4716) over Knob Fork Creek?
It is owned by the City or Municipal Highway Agency.