US 67 / Il 100 over Illinois River
PoorCass County, Illinois · W Edge Beardstown · Structure no. 009000100000000
- Built
- 1955
- 70 years old, rebuilt 1985
- Condition
- Poor
- inspected June 2024
- Type
- Truss - Thru
- Steel Continuous
- Length
- 3,686 ft
- 5 main spans
- Daily traffic
- 5,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 67 / Il 100 over Illinois River is a steel continuous truss - thru carrying US 67 / Il 100 over Illinois River in Cass County, Illinois. It was built in 1955 and reconstructed in 1985, so it is 70 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 2 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 5,600 vehicles a day, roughly 10% of them trucks, projected to reach 5,959 by 2046. The structure is 3,686 ft (1,123.5 m) long and 30 ft wide. If it were closed, the detour would be 39.8 mi (64 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 67 / Il 100 over Illinois River built?
It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1985.
What condition is US 67 / Il 100 over Illinois 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 June 2024.
How much traffic does US 67 / Il 100 over Illinois River carry?
About 5,600 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is US 67 / Il 100 over Illinois River?
The structure is 3,686 ft (1,123.5 m) long with a longest span of 540 ft (164.6 m) and a deck 30 ft wide.
Who owns US 67 / Il 100 over Illinois River?
It is owned by the State Highway Agency.