I-465 WB over US 421
FairMarion County, Indiana · 03.89 W US 31 · Structure no. 050550
- Built
- 1966
- 59 years old, rebuilt 1991
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 160 ft
- 2 main spans
- Daily traffic
- 60,761
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I-465 WB over US 421 is a steel continuous stringer/multi-beam or girder carrying I-465 WB over US 421 in Marion County, Indiana. It was built in 1966 and reconstructed in 1991, so it is 59 years old, older than the Indiana average of 46.6 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 60,761 vehicles a day, roughly 10% of them trucks, projected to reach 64,500 by 2035. The structure is 160 ft (48.7 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-465 WB over US 421 built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1991.
What condition is I-465 WB over US 421 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.
How much traffic does I-465 WB over US 421 carry?
About 60,761 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is I-465 WB over US 421?
The structure is 160 ft (48.7 m) long with a longest span of 78 ft (23.9 m) and a deck 54 ft wide.
Who owns I-465 WB over US 421?
It is owned by the State Highway Agency.