Ill 143 over Old Cahokia CR Chnnl
GoodMadison County, Illinois · .25 M W JCT 143-159 · Structure no. 060015800000000
- Built
- 1954
- 71 years old, rebuilt 1996
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 118 ft
- 3 main spans
- Daily traffic
- 7,950
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 143 over Old Cahokia CR Chnnl is a steel continuous stringer/multi-beam or girder carrying Ill 143 over Old Cahokia CR Chnnl in Madison County, Illinois. It was built in 1954 and reconstructed in 1996, so it is 71 years old, older than the Illinois average of 45.3 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 7,950 vehicles a day, roughly 5% of them trucks, projected to reach 4,414 by 2046. The structure is 118 ft (36.1 m) long and 89 ft wide. If it were closed, the detour would be 19.9 mi (32 km).
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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 143 over Old Cahokia CR Chnnl built?
It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1996.
What condition is Ill 143 over Old Cahokia CR Chnnl 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 May 2024.
How much traffic does Ill 143 over Old Cahokia CR Chnnl carry?
About 7,950 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Ill 143 over Old Cahokia CR Chnnl?
The structure is 118 ft (36.1 m) long with a longest span of 44 ft (13.4 m) and a deck 89 ft wide.
Who owns Ill 143 over Old Cahokia CR Chnnl?
It is owned by the State Highway Agency.