Ill 15 over Little Mud Creek
GoodSt. Clair County, Illinois · E Cl ST Libory · Structure no. 082200900000000
- Built
- 1936
- 89 years old
- Condition
- Good
- inspected March 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 29 ft
- 2 main spans
- Daily traffic
- 1,850
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 15 over Little Mud Creek is a concrete continuous culvert carrying Ill 15 over Little Mud Creek in St. Clair County, Illinois. It was built in 1936, so it is 89 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 1,850 vehicles a day, roughly 16% of them trucks, projected to reach 1,616 by 2046. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 32.9 mi (53 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 15 over Little Mud Creek built?
It was built in 1936, making it 89 years old in 2025.
What condition is Ill 15 over Little 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 March 2024.
How much traffic does Ill 15 over Little Mud Creek carry?
About 1,850 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is Ill 15 over Little Mud Creek?
The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m).
Who owns Ill 15 over Little Mud Creek?
It is owned by the State Highway Agency.