Ill 3 over Big Muddy River
GoodUnion County, Illinois · At Jackson CO Line · Structure no. 091003100000000
- Built
- 1958
- 67 years old, rebuilt 1999
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 454 ft
- 3 main spans
- Daily traffic
- 1,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 3 over Big Muddy River is a steel continuous stringer/multi-beam or girder carrying Ill 3 over Big Muddy River in Union County, Illinois. It was built in 1958 and reconstructed in 1999, so it is 67 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 1,100 vehicles a day, roughly 20% of them trucks, projected to reach 1,212 by 2046. The structure is 454 ft (138.3 m) long and 35 ft wide. If it were closed, the detour would be 34.8 mi (56 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 3 over Big Muddy River built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1999.
What condition is Ill 3 over Big Muddy 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 July 2024.
How much traffic does Ill 3 over Big Muddy River carry?
About 1,100 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is Ill 3 over Big Muddy River?
The structure is 454 ft (138.3 m) long with a longest span of 174 ft (53.1 m) and a deck 35 ft wide.
Who owns Ill 3 over Big Muddy River?
It is owned by the State Highway Agency.