Ch 1 over Crooked Leg Creek
FairLaSalle County, Illinois · E 1553 N 4090 · Structure no. 050344300000000
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 46 ft
- 1 main span
- Daily traffic
- 775
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Ch 1 over Crooked Leg Creek is a prestressed concrete box beam or girders - multiple carrying Ch 1 over Crooked Leg Creek in LaSalle County, Illinois. It was built in 1976, so it is 49 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 5 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 775 vehicles a day, roughly 6% of them trucks, projected to reach 783 by 2046. The structure is 46 ft (14 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Ch 1 over Crooked Leg Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is Ch 1 over Crooked Leg Creek 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 May 2023.
How much traffic does Ch 1 over Crooked Leg Creek carry?
About 775 vehicles per day (2020 count), of which roughly 6% are trucks.
How long is Ch 1 over Crooked Leg Creek?
The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 40 ft wide.
Who owns Ch 1 over Crooked Leg Creek?
It is owned by the County Highway Agency.