MS-4101 Dean Avenu over Ravine
FairPosted for loadLake County, Illinois · 1.5 N CO Line · Structure no. 049657400000000
- Built
- 1928
- 97 years old, rebuilt 1965
- Condition
- Fair
- inspected September 2024
- Type
- Truss - Deck
- Steel Continuous
- Length
- 196 ft
- 1 main span
- Daily traffic
- 900
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
MS-4101 Dean Avenu over Ravine is a steel continuous truss - deck carrying MS-4101 Dean Avenu over Ravine in Lake County, Illinois. It was built in 1928 and reconstructed in 1965, so it is 97 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. Its operating status is: posted for load restriction.
It carries about 900 vehicles a day, roughly 4% of them trucks, projected to reach 960 by 2046. The structure is 196 ft (59.7 m) long and 33 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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. |
| Channel and channel protection | 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 MS-4101 Dean Avenu over Ravine built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1965.
What condition is MS-4101 Dean Avenu 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 September 2024.
How much traffic does MS-4101 Dean Avenu over Ravine carry?
About 900 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is MS-4101 Dean Avenu over Ravine?
The structure is 196 ft (59.7 m) long with a longest span of 90 ft (27.4 m) and a deck 33 ft wide.
Who owns MS-4101 Dean Avenu over Ravine?
It is owned by the City or Municipal Highway Agency.