I840 over Big Turnbull Creek
GoodWilliamson County, Tennessee · 0.7 MI E JCT SR46&I840 · Structure no. 94SR8400003
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected January 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 52 ft
- 3 main spans
- Daily traffic
- 14,056
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I840 over Big Turnbull Creek is a concrete continuous culvert carrying I840 over Big Turnbull Creek in Williamson County, Tennessee. It was built in 2001, so it is 24 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 14,056 vehicles a day, roughly 7% of them trucks, projected to reach 29,168 by 2041. The structure is 52 ft (15.9 m) long. If it were closed, the detour would be 6.2 mi (10 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 I840 over Big Turnbull Creek built?
It was built in 2001, making it 24 years old in 2025.
What condition is I840 over Big Turnbull 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 January 2025.
How much traffic does I840 over Big Turnbull Creek carry?
About 14,056 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is I840 over Big Turnbull Creek?
The structure is 52 ft (15.9 m) long with a longest span of 16 ft (4.9 m).
Who owns I840 over Big Turnbull Creek?
It is owned by the State Highway Agency.