Ill 122 over I-155
FairTazewell County, Illinois · S. Interchge Il 122 · Structure no. 090013800000000
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 215 ft
- 2 main spans
- Daily traffic
- 1,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 122 over I-155 is a steel continuous stringer/multi-beam or girder carrying Ill 122 over I-155 in Tazewell County, Illinois. It was built in 1992, so it is 33 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 5 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 1,300 vehicles a day, roughly 12% of them trucks, projected to reach 1,465 by 2046. The structure is 215 ft (65.4 m) long and 65 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 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 Ill 122 over I-155 built?
It was built in 1992, making it 33 years old in 2025.
What condition is Ill 122 over I-155 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 Ill 122 over I-155 carry?
About 1,300 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is Ill 122 over I-155?
The structure is 215 ft (65.4 m) long with a longest span of 91 ft (27.7 m) and a deck 65 ft wide.
Who owns Ill 122 over I-155?
It is owned by the State Highway Agency.