US Bridges

I-55/64; US 40 WB over Broadway & Metrolink

Fair

St. Clair County, Illinois · E. St. Louis · Structure no. 082001000000000

Built
1965
60 years old, rebuilt 1990
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,229 ft
13 main spans
Daily traffic
52,650
2024 count
Owner
State
State Highway Agency

About this bridge

I-55/64; US 40 WB over Broadway & Metrolink is a steel continuous stringer/multi-beam or girder carrying I-55/64; US 40 WB over Broadway & Metrolink in St. Clair County, Illinois. It was built in 1965 and reconstructed in 1990, so it is 60 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 52,650 vehicles a day, roughly 12% of them trucks, projected to reach 53,177 by 2046. The structure is 1,229 ft (374.6 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-55/64; US 40 WB
CrossesBroadway & Metrolink
LocationE. St. Louis
RouteInterstate 55
CountySt. Clair County
StateIllinois
Coordinates38.6239, -90.16472
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.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20 + Mod
Structure length1,229 ft (374.6 m)
Longest span127 ft (38.7 m)
Deck width69 ft (21 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,650 (2024)
Projected traffic53,177 by 2046
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-55/64; US 40 WB over Broadway & Metrolink built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1990.

What condition is I-55/64; US 40 WB over Broadway & Metrolink 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 May 2023.

How much traffic does I-55/64; US 40 WB over Broadway & Metrolink carry?

About 52,650 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is I-55/64; US 40 WB over Broadway & Metrolink?

The structure is 1,229 ft (374.6 m) long with a longest span of 127 ft (38.7 m) and a deck 69 ft wide.

Who owns I-55/64; US 40 WB over Broadway & Metrolink?

It is owned by the State Highway Agency.