Or 79 over FAI 172
FairAdams County, Illinois · 2.2MI S I172/IL57 · Structure no. 001006900000000
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 287 ft
- 2 main spans
- Daily traffic
- 650
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Or 79 over FAI 172 is a steel continuous stringer/multi-beam or girder carrying Or 79 over FAI 172 in Adams County, Illinois. It was built in 1990, so it is 35 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 650 vehicles a day, roughly 11% of them trucks, projected to reach 581 by 2046. The structure is 287 ft (87.5 m) long and 37 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Or 79 over FAI 172 built?
It was built in 1990, making it 35 years old in 2025.
What condition is Or 79 over FAI 172 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 January 2025.
How much traffic does Or 79 over FAI 172 carry?
About 650 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is Or 79 over FAI 172?
The structure is 287 ft (87.5 m) long with a longest span of 112 ft (34.1 m) and a deck 37 ft wide.
Who owns Or 79 over FAI 172?
It is owned by the State Highway Agency.