Ill 18 over Drainage Ditch
GoodLaSalle County, Illinois · 3.03 MI E of Ill 89 · Structure no. 050203300000000
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected February 2021
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 3,050
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 18 over Drainage Ditch is a concrete culvert carrying Ill 18 over Drainage Ditch in LaSalle County, Illinois. It was built in 1999, so it is 26 years old, younger 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 3,050 vehicles a day, roughly 16% of them trucks, projected to reach 3,131 by 2046. The structure is 26 ft (7.8 m) long.
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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 18 over Drainage Ditch built?
It was built in 1999, making it 26 years old in 2025.
What condition is Ill 18 over Drainage Ditch 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 February 2021.
How much traffic does Ill 18 over Drainage Ditch carry?
About 3,050 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is Ill 18 over Drainage Ditch?
The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.6 m).
Who owns Ill 18 over Drainage Ditch?
It is owned by the State Highway Agency.