FAS 396-CH 18 over I-74
PoorKnox County, Illinois · 3 MI E of Spoon R · Structure no. 048003500000000
- Built
- 1968
- 57 years old
- Condition
- Poor
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 246 ft
- 4 main spans
- Daily traffic
- 350
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
FAS 396-CH 18 over I-74 is a steel continuous stringer/multi-beam or girder carrying FAS 396-CH 18 over I-74 in Knox 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 350 vehicles a day, roughly 23% of them trucks, projected to reach 303 by 2046. The structure is 246 ft (75 m) long and 32 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 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAS 396-CH 18 over I-74 built?
It was built in 1968, making it 57 years old in 2025.
What condition is FAS 396-CH 18 over I-74 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 December 2023.
How much traffic does FAS 396-CH 18 over I-74 carry?
About 350 vehicles per day (2022 count), of which roughly 23% are trucks.
How long is FAS 396-CH 18 over I-74?
The structure is 246 ft (75 m) long with a longest span of 74 ft (22.6 m) and a deck 32 ft wide.
Who owns FAS 396-CH 18 over I-74?
It is owned by the State Highway Agency.