Ch S27 over I-55
GoodLogan County, Illinois · 3.1 E I155/1 N Bl 55 · Structure no. 054005900000000
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 252 ft
- 2 main spans
- Daily traffic
- 1,150
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ch S27 over I-55 is a steel continuous stringer/multi-beam or girder carrying Ch S27 over I-55 in Logan County, Illinois. It was built in 1973, so it is 52 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,150 vehicles a day, roughly 3% of them trucks, projected to reach 1,470 by 2046. The structure is 252 ft (76.8 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ch S27 over I-55 built?
It was built in 1973, making it 52 years old in 2025.
What condition is Ch S27 over I-55 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.
How much traffic does Ch S27 over I-55 carry?
About 1,150 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Ch S27 over I-55?
The structure is 252 ft (76.8 m) long with a longest span of 109 ft (33.1 m) and a deck 38 ft wide.
Who owns Ch S27 over I-55?
It is owned by the State Highway Agency.