US Bridges

I-55/64 EB Cd & Ra over Trendley Ave

Good

St. Clair County, Illinois · Over Trendley in Esl · Structure no. 082014000000000

Built
1966
59 years old, rebuilt 1990
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
3 main spans
Daily traffic
14,700
2024 count
Owner
State
State Highway Agency

About this bridge

I-55/64 EB Cd & Ra over Trendley Ave is a steel continuous stringer/multi-beam or girder carrying I-55/64 EB Cd & Ra over Trendley Ave in St. Clair County, Illinois. It was built in 1966 and reconstructed in 1990, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,700 vehicles a day, roughly 13% of them trucks, projected to reach 19,493 by 2046. The structure is 180 ft (55 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-55/64 EB Cd & Ra
CrossesTrendley Ave
LocationOver Trendley in Esl
CountySt. Clair County
StateIllinois
Coordinates38.6186, -90.16561
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length180 ft (55 m)
Longest span80 ft (24.5 m)
Deck width63 ft (19.1 m)
Roadway width61 ft (18.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,700 (2024)
Projected traffic19,493 by 2046
Trucks13%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 I-55/64 EB Cd & Ra over Trendley Ave built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1990.

What condition is I-55/64 EB Cd & Ra over Trendley Ave in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does I-55/64 EB Cd & Ra over Trendley Ave carry?

About 14,700 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is I-55/64 EB Cd & Ra over Trendley Ave?

The structure is 180 ft (55 m) long with a longest span of 80 ft (24.5 m) and a deck 63 ft wide.

Who owns I-55/64 EB Cd & Ra over Trendley Ave?

It is owned by the State Highway Agency.