TR 439 over Cahokia CR
GoodMacoupin County, Illinois · 1/4 M S Sawyerville · Structure no. 059327100000000
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected January 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 181 ft
- 3 main spans
- Daily traffic
- 175
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 439 over Cahokia CR is a prestressed concrete box beam or girders - multiple carrying TR 439 over Cahokia CR in Macoupin County, Illinois. It was built in 1980, so it is 45 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 175 vehicles a day, roughly 7% of them trucks, projected to reach 177 by 2046. The structure is 181 ft (55.3 m) long and 30 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 439 over Cahokia CR built?
It was built in 1980, making it 45 years old in 2025.
What condition is TR 439 over Cahokia CR 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 439 over Cahokia CR carry?
About 175 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is TR 439 over Cahokia CR?
The structure is 181 ft (55.3 m) long with a longest span of 59 ft (17.9 m) and a deck 30 ft wide.
Who owns TR 439 over Cahokia CR?
It is owned by the Town or Township Highway Agency.