Lake Cook RD over Ravine
FairCook County, Illinois · 1.5 M E US 41 · Structure no. 016061600000000
- Built
- 1926
- 99 years old, rebuilt 1985
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 116 ft
- 3 main spans
- Daily traffic
- 3,200
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Lake Cook RD over Ravine is a steel continuous stringer/multi-beam or girder carrying Lake Cook RD over Ravine in Cook County, Illinois. It was built in 1926 and reconstructed in 1985, so it is 99 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 3,200 vehicles a day, roughly 4% of them trucks, projected to reach 3,384 by 2046. The structure is 116 ft (35.3 m) long and 48 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Lake Cook RD over Ravine built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1985.
What condition is Lake Cook RD over Ravine 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 November 2024.
How much traffic does Lake Cook RD over Ravine carry?
About 3,200 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Lake Cook RD over Ravine?
The structure is 116 ft (35.3 m) long with a longest span of 38 ft (11.6 m) and a deck 48 ft wide.
Who owns Lake Cook RD over Ravine?
It is owned by the State Highway Agency.