Old Alton-Edw RD C over Cahokia Creek
FairMadison County, Illinois · .25 S Ill 143 & 159 · Structure no. 060026200000000
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 162 ft
- 3 main spans
- Daily traffic
- 1,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Old Alton-Edw RD C over Cahokia Creek is a prestressed concrete box beam or girders - multiple carrying Old Alton-Edw RD C over Cahokia Creek in Madison County, Illinois. It was built in 1990, so it is 35 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 1,200 vehicles a day, roughly 3% of them trucks, projected to reach 1,338 by 2046. The structure is 162 ft (49.4 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old Alton-Edw RD C over Cahokia Creek built?
It was built in 1990, making it 35 years old in 2025.
What condition is Old Alton-Edw RD C over Cahokia Creek 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 2024.
How much traffic does Old Alton-Edw RD C over Cahokia Creek carry?
About 1,200 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Old Alton-Edw RD C over Cahokia Creek?
The structure is 162 ft (49.4 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.
Who owns Old Alton-Edw RD C over Cahokia Creek?
It is owned by the State Highway Agency.