US Bridges

Il 43 (harlem Ave over I-290 & Il 110/CTA/RR

Poor

Cook County, Illinois · 0.5 M N Il 38 · Structure no. 016031100000000

Built
1957
68 years old, rebuilt 1998
Condition
Poor
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
352 ft
5 main spans
Daily traffic
34,800
2023 count
Owner
State
State Highway Agency

About this bridge

Il 43 (harlem Ave over I-290 & Il 110/CTA/RR is a steel continuous stringer/multi-beam or girder carrying Il 43 (harlem Ave over I-290 & Il 110/CTA/RR in Cook County, Illinois. It was built in 1957 and reconstructed in 1998, so it is 68 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 4 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 34,800 vehicles a day, roughly 4% of them trucks, projected to reach 33,027 by 2046. The structure is 352 ft (107.3 m) long and 90 ft wide.

CarriesIl 43 (harlem Ave
CrossesI-290 & Il 110/CTA/RR
Location0.5 M N Il 38
RouteState Highway 43
Coordinates41.87392, -87.80453
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

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.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, 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 inspectionFebruary 2025
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.1 US tons
Inventory rating36.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length352 ft (107.3 m)
Longest span65 ft (19.9 m)
Deck width90 ft (27.5 m)
Roadway width75 ft (22.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,800 (2023)
Projected traffic33,027 by 2046
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 43 (harlem Ave over I-290 & Il 110/CTA/RR built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1998.

What condition is Il 43 (harlem Ave over I-290 & Il 110/CTA/RR 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 February 2025.

How much traffic does Il 43 (harlem Ave over I-290 & Il 110/CTA/RR carry?

About 34,800 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Il 43 (harlem Ave over I-290 & Il 110/CTA/RR?

The structure is 352 ft (107.3 m) long with a longest span of 65 ft (19.9 m) and a deck 90 ft wide.

Who owns Il 43 (harlem Ave over I-290 & Il 110/CTA/RR?

It is owned by the State Highway Agency.