Ill 173 over Drainage Ditch
GoodWinnebago County, Illinois · .1 MI E of Ill 251 · Structure no. 101205100000000
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected December 2021
- Type
- Culvert
- Concrete
- Length
- 39 ft
- 3 main spans
- Daily traffic
- 20,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 173 over Drainage Ditch is a concrete culvert carrying Ill 173 over Drainage Ditch in Winnebago County, Illinois. It was built in 2011, so it is 14 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 20,100 vehicles a day, roughly 3% of them trucks, projected to reach 10,100 by 2046. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 173 over Drainage Ditch built?
It was built in 2011, making it 14 years old in 2025.
What condition is Ill 173 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 December 2021.
How much traffic does Ill 173 over Drainage Ditch carry?
About 20,100 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Ill 173 over Drainage Ditch?
The structure is 39 ft (11.9 m) long with a longest span of 19 ft (5.9 m).
Who owns Ill 173 over Drainage Ditch?
It is owned by the State Highway Agency.