Ch 39 over Spoon River
FairKnox County, Illinois · SW-34-T9NR2E · Structure no. 048327500000000
- Built
- 1985
- 40 years old
- Condition
- Fair
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 195 ft
- 3 main spans
- Daily traffic
- 175
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Ch 39 over Spoon River is a prestressed concrete box beam or girders - multiple carrying Ch 39 over Spoon River in Knox County, Illinois. It was built in 1985, so it is 40 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 175 vehicles a day, roughly 27% of them trucks, projected to reach 227 by 2046. The structure is 195 ft (59.4 m) long and 28 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ch 39 over Spoon River built?
It was built in 1985, making it 40 years old in 2025.
What condition is Ch 39 over Spoon River 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 2024.
How much traffic does Ch 39 over Spoon River carry?
About 175 vehicles per day (2022 count), of which roughly 27% are trucks.
How long is Ch 39 over Spoon River?
The structure is 195 ft (59.4 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.
Who owns Ch 39 over Spoon River?
It is owned by the County Highway Agency.