Il 78 over French Creek
GoodWhiteside County, Illinois · S Edge Morrison · Structure no. 098011800000000
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected October 2021
- Type
- Slab
- Concrete
- Length
- 97 ft
- 3 main spans
- Daily traffic
- 2,150
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Il 78 over French Creek is a concrete slab carrying Il 78 over French Creek in Whiteside County, Illinois. It was built in 2015, so it is 10 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 2,150 vehicles a day, roughly 13% of them trucks, projected to reach 2,172 by 2046. The structure is 97 ft (29.6 m) long and 54 ft wide. If it were closed, the detour would be 21.7 mi (35 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 78 over French Creek built?
It was built in 2015, making it 10 years old in 2025.
What condition is Il 78 over French Creek 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 October 2021.
How much traffic does Il 78 over French Creek carry?
About 2,150 vehicles per day (2021 count), of which roughly 13% are trucks.
How long is Il 78 over French Creek?
The structure is 97 ft (29.6 m) long with a longest span of 37 ft (11.3 m) and a deck 54 ft wide.
Who owns Il 78 over French Creek?
It is owned by the State Highway Agency.