Ill 100 over Chataqua Creek
FairJersey County, Illinois · At Chataqua · Structure no. 042001300000000
- Built
- 1964
- 61 years old, rebuilt 1995
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 115 ft
- 3 main spans
- Daily traffic
- 3,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 100 over Chataqua Creek is a steel continuous stringer/multi-beam or girder carrying Ill 100 over Chataqua Creek in Jersey County, Illinois. It was built in 1964 and reconstructed in 1995, so it is 61 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 3,150 vehicles a day, roughly 9% of them trucks, projected to reach 3,586 by 2046. The structure is 115 ft (35.1 m) long and 73 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| 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 Ill 100 over Chataqua Creek built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1995.
What condition is Ill 100 over Chataqua 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 November 2023.
How much traffic does Ill 100 over Chataqua Creek carry?
About 3,150 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is Ill 100 over Chataqua Creek?
The structure is 115 ft (35.1 m) long with a longest span of 37 ft (11.4 m) and a deck 73 ft wide.
Who owns Ill 100 over Chataqua Creek?
It is owned by the State Highway Agency.