US Bridges

I-355 NB to I-88 W over I-355

Fair

DuPage County, Illinois · 1.2 M.E. of IL-53 · Structure no. 022997400000000

Built
1989
36 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
266 ft
2 main spans
Daily traffic
18,800
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-355 NB to I-88 W over I-355 is a steel stringer/multi-beam or girder carrying I-355 NB to I-88 W over I-355 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 18,800 vehicles a day, roughly 13% of them trucks, projected to reach 17,978 by 2046. The structure is 266 ft (81.2 m) long and 48 ft wide.

Location

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CarriesI-355 NB to I-88 W
CrossesI-355
Location1.2 M.E. of IL-53
CountyDuPage County
StateIllinois
Coordinates41.80796, -88.05332
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.1 US tons
Inventory rating51.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOther
Main spans2
Design loadUnknown
Structure length266 ft (81.2 m)
Longest span133 ft (40.5 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,800 (2023)
Projected traffic17,978 by 2046
Trucks13%
Lanes on structure8
Traffic directionTwo-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-355 NB to I-88 W over I-355 built?

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

What condition is I-355 NB to I-88 W over I-355 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 September 2024.

How much traffic does I-355 NB to I-88 W over I-355 carry?

About 18,800 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is I-355 NB to I-88 W over I-355?

The structure is 266 ft (81.2 m) long with a longest span of 133 ft (40.5 m) and a deck 48 ft wide.

Who owns I-355 NB to I-88 W over I-355?

It is owned by the State Toll Authority.