US Bridges

I-355 NB over Army Trail Rd.

Fair

DuPage County, Illinois · 0.3M.W.OF IL-53 · Structure no. 022995200000000

Built
1989
36 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
216 ft
2 main spans
Daily traffic
70,250
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-355 NB over Army Trail Rd. is a prestressed concrete stringer/multi-beam or girder carrying I-355 NB over Army Trail Rd. 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 70,250 vehicles a day, roughly 10% of them trucks, projected to reach 54,641 by 2046. The structure is 216 ft (65.8 m) long and 73 ft wide.

Location

Open in Google Maps
CarriesI-355 NB
CrossesArmy Trail Rd.
Location0.3M.W.OF IL-53
RouteInterstate 355
CountyDuPage County
StateIllinois
Coordinates41.93251, -88.03782
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
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 rating63.9 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length216 ft (65.8 m)
Longest span108 ft (32.9 m)
Deck width73 ft (22.3 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70,250 (2023)
Projected traffic54,641 by 2046
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 over Army Trail Rd. built?

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

What condition is I-355 NB over Army Trail Rd. 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 over Army Trail Rd. carry?

About 70,250 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I-355 NB over Army Trail Rd.?

The structure is 216 ft (65.8 m) long with a longest span of 108 ft (32.9 m) and a deck 73 ft wide.

Who owns I-355 NB over Army Trail Rd.?

It is owned by the State Toll Authority.