Ch 29 over I-57
PoorIroquois County, Illinois · 3.0 M S of Cheb Intr · Structure no. 038008800000000
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 207 ft
- 4 main spans
- Daily traffic
- 800
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ch 29 over I-57 is a steel continuous stringer/multi-beam or girder carrying Ch 29 over I-57 in Iroquois County, Illinois. It was built in 1965, so it is 60 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 800 vehicles a day, roughly 5% of them trucks, projected to reach 1,061 by 2046. The structure is 207 ft (63.1 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ch 29 over I-57 built?
It was built in 1965, making it 60 years old in 2025.
What condition is Ch 29 over I-57 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 January 2024.
How much traffic does Ch 29 over I-57 carry?
About 800 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Ch 29 over I-57?
The structure is 207 ft (63.1 m) long with a longest span of 58 ft (17.8 m) and a deck 32 ft wide.
Who owns Ch 29 over I-57?
It is owned by the State Highway Agency.