Il 4 over Mud Creek
GoodSt. Clair County, Illinois · 1.2 MI N JCT Il 13 · Structure no. 082029300000000
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 99 ft
- 3 main spans
- Daily traffic
- 1,550
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 4 over Mud Creek is a concrete continuous slab carrying Il 4 over Mud Creek in St. Clair County, Illinois. It was built in 1992, so it is 33 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 1,550 vehicles a day, roughly 33% of them trucks, projected to reach 1,465 by 2046. The structure is 99 ft (30.2 m) long and 35 ft wide. If it were closed, the detour would be 39.1 mi (63 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 Il 4 over Mud Creek built?
It was built in 1992, making it 33 years old in 2025.
What condition is Il 4 over Mud 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 2023.
How much traffic does Il 4 over Mud Creek carry?
About 1,550 vehicles per day (2023 count), of which roughly 33% are trucks.
How long is Il 4 over Mud Creek?
The structure is 99 ft (30.2 m) long with a longest span of 36 ft (11 m) and a deck 35 ft wide.
Who owns Il 4 over Mud Creek?
It is owned by the State Highway Agency.