I-88 WB over Ill 23
GoodDeKalb County, Illinois · S Edge Dekalb · Structure no. 019991100000000
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 160 ft
- 4 main spans
- Daily traffic
- 12,450
- 2023 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
I-88 WB over Ill 23 is a prestressed concrete stringer/multi-beam or girder carrying I-88 WB over Ill 23 in DeKalb County, Illinois. It was built in 1974, so it is 51 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 12,450 vehicles a day, roughly 27% of them trucks, projected to reach 10,136 by 2046. The structure is 160 ft (48.8 m) long and 43 ft wide.
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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-88 WB over Ill 23 built?
It was built in 1974, making it 51 years old in 2025.
What condition is I-88 WB over Ill 23 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 July 2023.
How much traffic does I-88 WB over Ill 23 carry?
About 12,450 vehicles per day (2023 count), of which roughly 27% are trucks.
How long is I-88 WB over Ill 23?
The structure is 160 ft (48.8 m) long with a longest span of 44 ft (13.4 m) and a deck 43 ft wide.
Who owns I-88 WB over Ill 23?
It is owned by the State Toll Authority.