FAI 55 SB over TR 439
FairMacoupin County, Illinois · 1.0MI S I-55/IL 138 · Structure no. 059004000000000
- Built
- 1973
- 52 years old, rebuilt 2012
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 132 ft
- 3 main spans
- Daily traffic
- 15,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FAI 55 SB over TR 439 is a steel continuous stringer/multi-beam or girder carrying FAI 55 SB over TR 439 in Macoupin County, Illinois. It was built in 1973 and reconstructed in 2012, so it is 52 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 15,200 vehicles a day, roughly 27% of them trucks, projected to reach 13,130 by 2046. The structure is 132 ft (40.3 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAI 55 SB over TR 439 built?
It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2012.
What condition is FAI 55 SB over TR 439 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 June 2023.
How much traffic does FAI 55 SB over TR 439 carry?
About 15,200 vehicles per day (2023 count), of which roughly 27% are trucks.
How long is FAI 55 SB over TR 439?
The structure is 132 ft (40.3 m) long with a longest span of 47 ft (14.3 m) and a deck 43 ft wide.
Who owns FAI 55 SB over TR 439?
It is owned by the State Highway Agency.