I26 Lt LN over SR 400 WB (unaka St)
GoodWashington County, Tennessee · In Johnson City · Structure no. 90I00260044
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 134 ft
- 3 main spans
- Daily traffic
- 55,938
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I26 Lt LN over SR 400 WB (unaka St) is a prestressed concrete stringer/multi-beam or girder carrying I26 Lt LN over SR 400 WB (unaka St) in Washington County, Tennessee. It was built in 1975, so it is 50 years old, older 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 55,938 vehicles a day, roughly 6% of them trucks, projected to reach 89,501 by 2042. The structure is 134 ft (40.7 m) long and 44 ft wide.
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 I26 Lt LN over SR 400 WB (unaka St) built?
It was built in 1975, making it 50 years old in 2025.
What condition is I26 Lt LN over SR 400 WB (unaka St) 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 September 2023.
How much traffic does I26 Lt LN over SR 400 WB (unaka St) carry?
About 55,938 vehicles per day (2021 count), of which roughly 6% are trucks.
How long is I26 Lt LN over SR 400 WB (unaka St)?
The structure is 134 ft (40.7 m) long with a longest span of 63 ft (19.2 m) and a deck 44 ft wide.
Who owns I26 Lt LN over SR 400 WB (unaka St)?
It is owned by the State Highway Agency.