I 840 over I840-RL / Cox RD
GoodWilliamson County, Tennessee · 2.1 MI W JCT.SR11&I840 · Structure no. 94SR8400079
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 138 ft
- 3 main spans
- Daily traffic
- 39,020
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I 840 over I840-RL / Cox RD is a prestressed concrete continuous stringer/multi-beam or girder carrying I 840 over I840-RL / Cox RD 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 39,020 vehicles a day, roughly 7% of them trucks, projected to reach 57,094 by 2041. The structure is 138 ft (42 m) long and 44 ft wide. If it were closed, the detour would be 8.1 mi (13 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 840 over I840-RL / Cox RD built?
It was built in 2001, making it 24 years old in 2025.
What condition is I 840 over I840-RL / Cox RD 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 March 2023.
How much traffic does I 840 over I840-RL / Cox RD carry?
About 39,020 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is I 840 over I840-RL / Cox RD?
The structure is 138 ft (42 m) long with a longest span of 68 ft (20.6 m) and a deck 44 ft wide.
Who owns I 840 over I840-RL / Cox RD?
It is owned by the State Highway Agency.