Ill 143 EB over N Entrance to Siue
FairMadison County, Illinois · 1.3 MI W Ill 159 · Structure no. 060019200000000
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 176 ft
- 4 main spans
- Daily traffic
- 10,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 143 EB over N Entrance to Siue is a steel continuous stringer/multi-beam or girder carrying Ill 143 EB over N Entrance to Siue in Madison County, Illinois. It was built in 1968, so it is 57 years old, older 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 6 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 10,500 vehicles a day, roughly 8% of them trucks, projected to reach 5,564 by 2046. The structure is 176 ft (53.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Ill 143 EB over N Entrance to Siue built?
It was built in 1968, making it 57 years old in 2025.
What condition is Ill 143 EB over N Entrance to Siue 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 May 2024.
How much traffic does Ill 143 EB over N Entrance to Siue carry?
About 10,500 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Ill 143 EB over N Entrance to Siue?
The structure is 176 ft (53.7 m) long with a longest span of 47 ft (14.3 m) and a deck 43 ft wide.
Who owns Ill 143 EB over N Entrance to Siue?
It is owned by the State Highway Agency.