US Bridges

I-55/64; US 40 EB over Trendly Ave E ST L

Fair

St. Clair County, Illinois · 3rd Br E Pop ST Br · Structure no. 082000700000000

Built
1966
59 years old, rebuilt 1994
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
187 ft
3 main spans
Daily traffic
30,700
2024 count
Owner
State
State Highway Agency

About this bridge

I-55/64; US 40 EB over Trendly Ave E ST L is a steel continuous stringer/multi-beam or girder carrying I-55/64; US 40 EB over Trendly Ave E ST L in St. Clair County, Illinois. It was built in 1966 and reconstructed in 1994, so it is 59 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 30,700 vehicles a day, roughly 14% of them trucks, projected to reach 29,341 by 2046. The structure is 187 ft (57 m) long and 43 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 EB
CrossesTrendly Ave E ST L
Location3rd Br E Pop ST Br
RouteInterstate 55
CountySt. Clair County
StateIllinois
Coordinates38.61857, -90.16615
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating94.2 US tons
Inventory rating56.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length187 ft (57 m)
Longest span80 ft (24.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,700 (2024)
Projected traffic29,341 by 2046
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 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-55/64; US 40 EB over Trendly Ave E ST L built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1994.

What condition is I-55/64; US 40 EB over Trendly Ave E ST L 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 EB over Trendly Ave E ST L carry?

About 30,700 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is I-55/64; US 40 EB over Trendly Ave E ST L?

The structure is 187 ft (57 m) long with a longest span of 80 ft (24.5 m) and a deck 43 ft wide.

Who owns I-55/64; US 40 EB over Trendly Ave E ST L?

It is owned by the State Highway Agency.