Il 21 over Il 120 & Stream
GoodLake County, Illinois · 1 M W of I-94 · Structure no. 049017900000000
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 538 ft
- 2 main spans
- Daily traffic
- 22,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 21 over Il 120 & Stream is a steel continuous stringer/multi-beam or girder carrying Il 21 over Il 120 & Stream in Lake County, Illinois. It was built in 2003, so it is 22 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 22,300 vehicles a day, roughly 6% of them trucks, projected to reach 21,311 by 2046. The structure is 538 ft (164 m) long and 80 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 21 over Il 120 & Stream built?
It was built in 2003, making it 22 years old in 2025.
What condition is Il 21 over Il 120 & Stream 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 September 2024.
How much traffic does Il 21 over Il 120 & Stream carry?
About 22,300 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Il 21 over Il 120 & Stream?
The structure is 538 ft (164 m) long with a longest span of 238 ft (72.5 m) and a deck 80 ft wide.
Who owns Il 21 over Il 120 & Stream?
It is owned by the State Highway Agency.