Ill Rt 78 over Plum River
GoodJo Daviess County, Illinois · .15MI N Groeziner RD · Structure no. 043008100000000
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 156 ft
- 2 main spans
- Daily traffic
- 700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill Rt 78 over Plum River is a prestressed concrete continuous stringer/multi-beam or girder carrying Ill Rt 78 over Plum River in Jo Daviess County, Illinois. It was built in 2022, so it is 3 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 700 vehicles a day, roughly 14% of them trucks, projected to reach 650 by 2042. The structure is 156 ft (47.4 m) long and 35 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill Rt 78 over Plum River built?
It was built in 2022, making it 3 years old in 2025.
What condition is Ill Rt 78 over Plum River 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 November 2024.
How much traffic does Ill Rt 78 over Plum River carry?
About 700 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is Ill Rt 78 over Plum River?
The structure is 156 ft (47.4 m) long with a longest span of 102 ft (31 m) and a deck 35 ft wide.
Who owns Ill Rt 78 over Plum River?
It is owned by the State Highway Agency.