FAI 57 Nbl over Big Four Ditch
PoorFord County, Illinois · 2.37 MI S of Ill 9 · Structure no. 027005300000000
- Built
- 1968
- 57 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 281 ft
- 5 main spans
- Daily traffic
- 10,550
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FAI 57 Nbl over Big Four Ditch is a prestressed concrete stringer/multi-beam or girder carrying FAI 57 Nbl over Big Four Ditch in Ford 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 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 10,550 vehicles a day, roughly 31% of them trucks, projected to reach 10,656 by 2046. The structure is 281 ft (85.6 m) long and 36 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 | 4 Poor | Advanced section loss, deterioration, 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAI 57 Nbl over Big Four Ditch built?
It was built in 1968, making it 57 years old in 2025.
What condition is FAI 57 Nbl over Big Four Ditch 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 February 2024.
How much traffic does FAI 57 Nbl over Big Four Ditch carry?
About 10,550 vehicles per day (2023 count), of which roughly 31% are trucks.
How long is FAI 57 Nbl over Big Four Ditch?
The structure is 281 ft (85.6 m) long with a longest span of 56 ft (17 m) and a deck 36 ft wide.
Who owns FAI 57 Nbl over Big Four Ditch?
It is owned by the State Highway Agency.