Ch 9/FAS 309 over Exline Slough
FairKankakee County, Illinois · 3.9 M E of Ill 50 · Structure no. 046006000000000
- Built
- 1939
- 86 years old, rebuilt 1989
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 60 ft
- 1 main span
- Daily traffic
- 1,700
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Ch 9/FAS 309 over Exline Slough is a prestressed concrete box beam or girders - multiple carrying Ch 9/FAS 309 over Exline Slough in Kankakee County, Illinois. It was built in 1939 and reconstructed in 1989, so it is 86 years old, older 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 1,700 vehicles a day, roughly 15% of them trucks, projected to reach 1,734 by 2046. The structure is 60 ft (18.4 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ch 9/FAS 309 over Exline Slough built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1989.
What condition is Ch 9/FAS 309 over Exline Slough 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 June 2024.
How much traffic does Ch 9/FAS 309 over Exline Slough carry?
About 1,700 vehicles per day (2021 count), of which roughly 15% are trucks.
How long is Ch 9/FAS 309 over Exline Slough?
The structure is 60 ft (18.4 m) long with a longest span of 58 ft (17.6 m) and a deck 36 ft wide.
Who owns Ch 9/FAS 309 over Exline Slough?
It is owned by the County Highway Agency.