US Bridges

I- 55 EB to NB Frk over I- 55 Stevenson

Fair

Cook County, Illinois · 0.6 M E I-94 · Structure no. 016105600000000

Built
1964
61 years old, rebuilt 2002
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,494 ft
21 main spans
Daily traffic
6,600
2024 count
Owner
State
State Highway Agency

About this bridge

I- 55 EB to NB Frk over I- 55 Stevenson is a steel continuous stringer/multi-beam or girder carrying I- 55 EB to NB Frk over I- 55 Stevenson in Cook County, Illinois. It was built in 1964 and reconstructed in 2002, so it is 61 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 6,600 vehicles a day, roughly 18% of them trucks, projected to reach 6,666 by 2046. The structure is 1,494 ft (455.5 m) long and 29 ft wide.

Location

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CarriesI- 55 EB to NB Frk
CrossesI- 55 Stevenson
Location0.6 M E I-94
CountyCook County
StateIllinois
Coordinates41.8469, -87.63382
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans21
Design loadHS 20
Structure length1,494 ft (455.5 m)
Longest span96 ft (29.3 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2024)
Projected traffic6,666 by 2046
Trucks18%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I- 55 EB to NB Frk over I- 55 Stevenson built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2002.

What condition is I- 55 EB to NB Frk over I- 55 Stevenson 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 April 2024.

How much traffic does I- 55 EB to NB Frk over I- 55 Stevenson carry?

About 6,600 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is I- 55 EB to NB Frk over I- 55 Stevenson?

The structure is 1,494 ft (455.5 m) long with a longest span of 96 ft (29.3 m) and a deck 29 ft wide.

Who owns I- 55 EB to NB Frk over I- 55 Stevenson?

It is owned by the State Highway Agency.