I-74 WB over West Fork Big Walnut CR
FairBoone County, Indiana · 01.64 E SR 75 · Structure no. 044310
- Built
- 1963
- 62 years old, rebuilt 2018
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Concrete Continuous
- Length
- 110 ft
- 3 main spans
- Daily traffic
- 10,041
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
I-74 WB over West Fork Big Walnut CR is a concrete continuous stringer/multi-beam or girder carrying I-74 WB over West Fork Big Walnut CR in Boone County, Indiana. It was built in 1963 and reconstructed in 2018, so it is 62 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 10,041 vehicles a day, roughly 38% of them trucks, projected to reach 14,920 by 2037. The structure is 110 ft (33.5 m) long and 43 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-74 WB over West Fork Big Walnut CR built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2018.
What condition is I-74 WB over West Fork Big Walnut CR 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 August 2023.
How much traffic does I-74 WB over West Fork Big Walnut CR carry?
About 10,041 vehicles per day (2017 count), of which roughly 38% are trucks.
How long is I-74 WB over West Fork Big Walnut CR?
The structure is 110 ft (33.5 m) long with a longest span of 34 ft (10.3 m) and a deck 43 ft wide.
Who owns I-74 WB over West Fork Big Walnut CR?
It is owned by the State Highway Agency.