US Bridges

I-88 EB to I-355 N over I-88

Fair

DuPage County, Illinois · 0.1 M.E. of Finley · Structure no. 022996900000000

Built
1989
36 years old
Condition
Fair
inspected June 2024
Type
Segmental Box Girder
Prestressed Concrete
Length
528 ft
7 main spans
Daily traffic
16,200
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-88 EB to I-355 N over I-88 is a prestressed concrete segmental box girder carrying I-88 EB to I-355 N over I-88 in DuPage County, Illinois. It was built in 1989, so it is 36 years old, younger 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 6 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 16,200 vehicles a day, projected to reach 1,212 by 2046. The structure is 528 ft (160.9 m) long and 33 ft wide.

Location

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CarriesI-88 EB to I-355 N
CrossesI-88
Location0.1 M.E. of Finley
CountyDuPage County
StateIllinois
Coordinates41.81453, -88.0277
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating72.9 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete
DeckOther
Main spans7
Design loadUnknown
Structure length528 ft (160.9 m)
Longest span76 ft (23.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,200 (2023)
Projected traffic1,212 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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-88 EB to I-355 N over I-88 built?

It was built in 1989, making it 36 years old in 2025.

What condition is I-88 EB to I-355 N over I-88 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 June 2024.

How much traffic does I-88 EB to I-355 N over I-88 carry?

About 16,200 vehicles per day (2023 count).

How long is I-88 EB to I-355 N over I-88?

The structure is 528 ft (160.9 m) long with a longest span of 76 ft (23.2 m) and a deck 33 ft wide.

Who owns I-88 EB to I-355 N over I-88?

It is owned by the State Toll Authority.