WB I-74 over Spoon R & TR 238A
PoorKnox County, Illinois · 9 MI E of Knoxville · Structure no. 048005100000000
- Built
- 1968
- 57 years old
- Condition
- Poor
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 392 ft
- 4 main spans
- Daily traffic
- 7,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
WB I-74 over Spoon R & TR 238A is a steel continuous stringer/multi-beam or girder carrying WB I-74 over Spoon R & TR 238A 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 3 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 7,700 vehicles a day, roughly 31% of them trucks, projected to reach 7,626 by 2046. The structure is 392 ft (119.5 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB I-74 over Spoon R & TR 238A built?
It was built in 1968, making it 57 years old in 2025.
What condition is WB I-74 over Spoon R & TR 238A 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 WB I-74 over Spoon R & TR 238A carry?
About 7,700 vehicles per day (2023 count), of which roughly 31% are trucks.
How long is WB I-74 over Spoon R & TR 238A?
The structure is 392 ft (119.5 m) long with a longest span of 109 ft (33.2 m) and a deck 36 ft wide.
Who owns WB I-74 over Spoon R & TR 238A?
It is owned by the State Highway Agency.