US 41 over Mill Creek
FairLake County, Illinois · 3.5 M N of Gurnee · Structure no. 049002800000000
- Built
- 1951
- 74 years old, rebuilt 1989
- Condition
- Fair
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 48 ft
- 1 main span
- Daily traffic
- 24,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 41 over Mill Creek is a steel stringer/multi-beam or girder carrying US 41 over Mill Creek in Lake County, Illinois. It was built in 1951 and reconstructed in 1989, so it is 74 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 24,500 vehicles a day, roughly 11% of them trucks, projected to reach 23,230 by 2046. The structure is 48 ft (14.6 m) long and 105 ft wide. If it were closed, the detour would be 16.2 mi (26 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 41 over Mill Creek built?
It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1989.
What condition is US 41 over Mill Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.
How much traffic does US 41 over Mill Creek carry?
About 24,500 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is US 41 over Mill Creek?
The structure is 48 ft (14.6 m) long with a longest span of 44 ft (13.4 m) and a deck 105 ft wide.
Who owns US 41 over Mill Creek?
It is owned by the State Highway Agency.