WB I-74 over Altorfer ST
FairTazewell County, Illinois · .25 MI W of Ill 116 · Structure no. 090015900000000
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 192 ft
- 3 main spans
- Daily traffic
- 28,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
WB I-74 over Altorfer ST is a prestressed concrete continuous stringer/multi-beam or girder carrying WB I-74 over Altorfer ST in Tazewell County, Illinois. It was built in 2006, so it is 19 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 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 28,500 vehicles a day, roughly 7% of them trucks, projected to reach 26,311 by 2046. The structure is 192 ft (58.5 m) long and 80 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB I-74 over Altorfer ST built?
It was built in 2006, making it 19 years old in 2025.
What condition is WB I-74 over Altorfer ST 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 April 2023.
How much traffic does WB I-74 over Altorfer ST carry?
About 28,500 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is WB I-74 over Altorfer ST?
The structure is 192 ft (58.5 m) long with a longest span of 84 ft (25.7 m) and a deck 80 ft wide.
Who owns WB I-74 over Altorfer ST?
It is owned by the State Highway Agency.