TR 473 over Cahokia Creek
GoodMacoupin County, Illinois · 3 MI W Stauton · Structure no. 059351300000000
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected January 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 103 ft
- 3 main spans
- Daily traffic
- 75
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 473 over Cahokia Creek is a prestressed concrete box beam or girders - multiple carrying TR 473 over Cahokia Creek in Macoupin County, Illinois. It was built in 1995, so it is 30 years old, younger 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 75 vehicles a day, roughly 16% of them trucks, projected to reach 76 by 2046. The structure is 103 ft (31.4 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 473 over Cahokia Creek built?
It was built in 1995, making it 30 years old in 2025.
What condition is TR 473 over Cahokia Creek 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 January 2023.
How much traffic does TR 473 over Cahokia Creek carry?
About 75 vehicles per day (2021 count), of which roughly 16% are trucks.
How long is TR 473 over Cahokia Creek?
The structure is 103 ft (31.4 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.
Who owns TR 473 over Cahokia Creek?
It is owned by the Town or Township Highway Agency.