FAI 172 SB over Bn RR
PoorAdams County, Illinois · 1.5MI S I172/US24 · Structure no. 001005000000000
- Built
- 1976
- 49 years old
- Condition
- Poor
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 288 ft
- 3 main spans
- Daily traffic
- 3,675
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FAI 172 SB over Bn RR is a prestressed concrete stringer/multi-beam or girder carrying FAI 172 SB over Bn RR in Adams County, Illinois. It was built in 1976, so it is 49 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 3,675 vehicles a day, roughly 11% of them trucks, projected to reach 3,737 by 2046. The structure is 288 ft (87.9 m) long and 42 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAI 172 SB over Bn RR built?
It was built in 1976, making it 49 years old in 2025.
What condition is FAI 172 SB over Bn RR in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.
How much traffic does FAI 172 SB over Bn RR carry?
About 3,675 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is FAI 172 SB over Bn RR?
The structure is 288 ft (87.9 m) long with a longest span of 97 ft (29.7 m) and a deck 42 ft wide.
Who owns FAI 172 SB over Bn RR?
It is owned by the State Highway Agency.