US Bridges

I- 55 WB Stevenson over RR - CSXT

Poor

Cook County, Illinois · 2.2 M SW Ill 43 · Structure no. 016001200000000

Built
1963
62 years old, rebuilt 2000
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
224 ft
4 main spans
Daily traffic
71,000
2024 count
Owner
State
State Highway Agency

About this bridge

I- 55 WB Stevenson over RR - CSXT is a steel continuous stringer/multi-beam or girder carrying I- 55 WB Stevenson over RR - CSXT in Cook County, Illinois. It was built in 1963 and reconstructed in 2000, 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 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 71,000 vehicles a day, roughly 10% of them trucks, projected to reach 69,993 by 2046. The structure is 224 ft (68.3 m) long and 70 ft wide.

CarriesI- 55 WB Stevenson
CrossesRR - CSXT
Location2.2 M SW Ill 43
RouteInterstate 55
Coordinates41.78379, -87.83048
Functional classUrban Principal Arterial - Interstate

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating61.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length224 ft (68.3 m)
Longest span60 ft (18.3 m)
Deck width70 ft (21.3 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic71,000 (2024)
Projected traffic69,993 by 2046
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I- 55 WB Stevenson over RR - CSXT built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2000.

What condition is I- 55 WB Stevenson over RR - CSXT 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 July 2024.

How much traffic does I- 55 WB Stevenson over RR - CSXT carry?

About 71,000 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I- 55 WB Stevenson over RR - CSXT?

The structure is 224 ft (68.3 m) long with a longest span of 60 ft (18.3 m) and a deck 70 ft wide.

Who owns I- 55 WB Stevenson over RR - CSXT?

It is owned by the State Highway Agency.