US 6 FAP 623 over Fox River
PoorLaSalle County, Illinois · 0.68 MI E of Ill 23 · Structure no. 050003300000000
- Built
- 1928
- 97 years old, rebuilt 1975
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 378 ft
- 6 main spans
- Daily traffic
- 10,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 6 FAP 623 over Fox River is a steel continuous stringer/multi-beam or girder carrying US 6 FAP 623 over Fox River in LaSalle County, Illinois. It was built in 1928 and reconstructed in 1975, so it is 97 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 10,700 vehicles a day, roughly 9% of them trucks, projected to reach 10,100 by 2046. The structure is 378 ft (115.2 m) long and 80 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 US 6 FAP 623 over Fox River built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1975.
What condition is US 6 FAP 623 over Fox River 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 August 2024.
How much traffic does US 6 FAP 623 over Fox River carry?
About 10,700 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is US 6 FAP 623 over Fox River?
The structure is 378 ft (115.2 m) long with a longest span of 63 ft (19.2 m) and a deck 80 ft wide.
Who owns US 6 FAP 623 over Fox River?
It is owned by the State Highway Agency.