US 12 45 Mannheim over Silver Creek
GoodCook County, Illinois · .33 M S of Grand Ave · Structure no. 016215100000000
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 75 ft
- 2 main spans
- Daily traffic
- 41,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 12 45 Mannheim over Silver Creek is a concrete continuous culvert carrying US 12 45 Mannheim over Silver Creek in Cook County, Illinois. It was built in 1977, so it is 48 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 41,700 vehicles a day, roughly 12% of them trucks, projected to reach 25,553 by 2046. The structure is 75 ft (22.8 m) long.
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 US 12 45 Mannheim over Silver Creek built?
It was built in 1977, making it 48 years old in 2025.
What condition is US 12 45 Mannheim over Silver 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 April 2024.
How much traffic does US 12 45 Mannheim over Silver Creek carry?
About 41,700 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is US 12 45 Mannheim over Silver Creek?
The structure is 75 ft (22.8 m) long with a longest span of 36 ft (11.1 m).
Who owns US 12 45 Mannheim over Silver Creek?
It is owned by the State Highway Agency.