Il 71 over Vermilion River
FairLaSalle County, Illinois · 3.2 MI W of Il 178 · Structure no. 050024200000000
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 355 ft
- 3 main spans
- Daily traffic
- 2,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 71 over Vermilion River is a prestressed concrete stringer/multi-beam or girder carrying Il 71 over Vermilion River in LaSalle County, Illinois. It was built in 2006, so it is 19 years old, younger than the Illinois average of 45.3 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 2,200 vehicles a day, roughly 3% of them trucks, projected to reach 2,071 by 2046. The structure is 355 ft (108.2 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 71 over Vermilion River built?
It was built in 2006, making it 19 years old in 2025.
What condition is Il 71 over Vermilion River 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 March 2024.
How much traffic does Il 71 over Vermilion River carry?
About 2,200 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Il 71 over Vermilion River?
The structure is 355 ft (108.2 m) long with a longest span of 132 ft (40.1 m) and a deck 35 ft wide.
Who owns Il 71 over Vermilion River?
It is owned by the State Highway Agency.