Michigan Ave over Various City Streets
PoorCook County, Illinois · 100E.& 340N.TO 200N. · Structure no. 016612100000000
- Built
- 1921
- 104 years old, rebuilt 1998
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 903 ft
- 35 main spans
- Daily traffic
- 24,300
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Michigan Ave over Various City Streets is a steel continuous stringer/multi-beam or girder carrying Michigan Ave over Various City Streets in Cook County, Illinois. It was built in 1921 and reconstructed in 1998, so it is 104 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 24,300 vehicles a day, roughly 4% of them trucks, projected to reach 28,583 by 2046. The structure is 903 ft (275.2 m) long and 128 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Michigan Ave over Various City Streets built?
It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1998.
What condition is Michigan Ave over Various City Streets in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does Michigan Ave over Various City Streets carry?
About 24,300 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Michigan Ave over Various City Streets?
The structure is 903 ft (275.2 m) long with a longest span of 48 ft (14.6 m) and a deck 128 ft wide.
Who owns Michigan Ave over Various City Streets?
It is owned by the City or Municipal Highway Agency.