Il 59 over US 12
GoodLake County, Illinois · 0.5 M S of Il 176 · Structure no. 049019100000000
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected October 2021
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 213 ft
- 2 main spans
- Daily traffic
- 13,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 59 over US 12 is a steel continuous stringer/multi-beam or girder carrying Il 59 over US 12 in Lake County, Illinois. It was built in 2001, so it is 24 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 13,100 vehicles a day, roughly 6% of them trucks, projected to reach 14,342 by 2046. The structure is 213 ft (65 m) long and 43 ft wide.
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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 59 over US 12 built?
It was built in 2001, making it 24 years old in 2025.
What condition is Il 59 over US 12 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 2021.
How much traffic does Il 59 over US 12 carry?
About 13,100 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Il 59 over US 12?
The structure is 213 ft (65 m) long with a longest span of 82 ft (25 m) and a deck 43 ft wide.
Who owns Il 59 over US 12?
It is owned by the State Highway Agency.