Deerfield RD over US 41
FairLake County, Illinois · Deerfield & US 41 · Structure no. 049007400000000
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 229 ft
- 4 main spans
- Daily traffic
- 21,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Deerfield RD over US 41 is a steel continuous stringer/multi-beam or girder carrying Deerfield RD over US 41 in Lake County, Illinois. It was built in 1960, so it is 65 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 5 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 21,700 vehicles a day, roughly 2% of them trucks, projected to reach 23,533 by 2046. The structure is 229 ft (69.8 m) long and 83 ft wide.
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Deerfield RD over US 41 built?
It was built in 1960, making it 65 years old in 2025.
What condition is Deerfield RD over US 41 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 May 2023.
How much traffic does Deerfield RD over US 41 carry?
About 21,700 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Deerfield RD over US 41?
The structure is 229 ft (69.8 m) long with a longest span of 68 ft (20.6 m) and a deck 83 ft wide.
Who owns Deerfield RD over US 41?
It is owned by the State Highway Agency.