I-64 WB over Trra
FairSt. Clair County, Illinois · 0.3MI W of 25th St. · Structure no. 082015900000000
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 176 ft
- 3 main spans
- Daily traffic
- 37,900
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-64 WB over Trra is a steel continuous stringer/multi-beam or girder carrying I-64 WB over Trra in St. Clair County, Illinois. It was built in 1968, so it is 57 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 37,900 vehicles a day, roughly 13% of them trucks, projected to reach 41,713 by 2046. The structure is 176 ft (53.6 m) long and 48 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-64 WB over Trra built?
It was built in 1968, making it 57 years old in 2025.
What condition is I-64 WB over Trra 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 February 2023.
How much traffic does I-64 WB over Trra carry?
About 37,900 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is I-64 WB over Trra?
The structure is 176 ft (53.6 m) long with a longest span of 62 ft (18.9 m) and a deck 48 ft wide.
Who owns I-64 WB over Trra?
It is owned by the State Highway Agency.