US Bridges

Dearborn ST over Carrol Ave

Fair

Cook County, Illinois · 36W&330N to 400N · Structure no. 016611500000000

Built
1963
62 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
251 ft
5 main spans
Daily traffic
11,200
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dearborn ST over Carrol Ave is a steel stringer/multi-beam or girder carrying Dearborn ST over Carrol Ave in Cook County, Illinois. It was built in 1963, so it is 62 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 11,200 vehicles a day, roughly 9% of them trucks, projected to reach 5,757 by 2046. The structure is 251 ft (76.4 m) long and 85 ft wide.

Location

Open in Google Maps
CarriesDearborn ST
CrossesCarrol Ave
Location36W&330N to 400N
CountyCook County
StateIllinois
Coordinates41.88852, -87.62955
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating27.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length251 ft (76.4 m)
Longest span64 ft (19.5 m)
Deck width85 ft (26 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,200 (2022)
Projected traffic5,757 by 2046
Trucks9%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dearborn ST over Carrol Ave built?

It was built in 1963, making it 62 years old in 2025.

What condition is Dearborn ST over Carrol Ave 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 June 2024.

How much traffic does Dearborn ST over Carrol Ave carry?

About 11,200 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Dearborn ST over Carrol Ave?

The structure is 251 ft (76.4 m) long with a longest span of 64 ft (19.5 m) and a deck 85 ft wide.

Who owns Dearborn ST over Carrol Ave?

It is owned by the City or Municipal Highway Agency.