I840 over I840/JOHNSON Hollow RD
GoodWilliamson County, Tennessee · 8 MI W Jct. I65&I840 · Structure no. 94SR8400036
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 198 ft
- 3 main spans
- Daily traffic
- 22,556
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I840 over I840/JOHNSON Hollow RD is a prestressed concrete continuous stringer/multi-beam or girder carrying I840 over I840/JOHNSON Hollow RD in Williamson County, Tennessee. It was built in 2011, so it is 14 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 22,556 vehicles a day, roughly 7% of them trucks, projected to reach 34,176 by 2041. The structure is 198 ft (60.5 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I840 over I840/JOHNSON Hollow RD built?
It was built in 2011, making it 14 years old in 2025.
What condition is I840 over I840/JOHNSON Hollow 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 December 2024.
How much traffic does I840 over I840/JOHNSON Hollow RD carry?
About 22,556 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is I840 over I840/JOHNSON Hollow RD?
The structure is 198 ft (60.5 m) long with a longest span of 73 ft (22.1 m) and a deck 44 ft wide.
Who owns I840 over I840/JOHNSON Hollow RD?
It is owned by the State Highway Agency.