US Bridges

Il 64 over I-355

Fair

DuPage County, Illinois · 0.2 M W of Il 53 · Structure no. 022022100000000

Built
1988
37 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
210 ft
2 main spans
Daily traffic
40,600
2023 count
Owner
State
State Highway Agency

About this bridge

Il 64 over I-355 is a prestressed concrete continuous stringer/multi-beam or girder carrying Il 64 over I-355 in DuPage County, Illinois. It was built in 1988, so it is 37 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 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 40,600 vehicles a day, roughly 13% of them trucks, projected to reach 42,016 by 2046. The structure is 210 ft (64 m) long and 142 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIl 64
CrossesI-355
Location0.2 M W of Il 53
RouteState Highway 64
CountyDuPage County
StateIllinois
Coordinates41.90403, -88.03843
Functional classUrban Other Principal Arterial

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.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.3 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length210 ft (64 m)
Longest span106 ft (32.3 m)
Deck width142 ft (43.3 m)
Roadway width126 ft (38.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,600 (2023)
Projected traffic42,016 by 2046
Trucks13%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 Il 64 over I-355 built?

It was built in 1988, making it 37 years old in 2025.

What condition is Il 64 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 May 2023.

How much traffic does Il 64 over I-355 carry?

About 40,600 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Il 64 over I-355?

The structure is 210 ft (64 m) long with a longest span of 106 ft (32.3 m) and a deck 142 ft wide.

Who owns Il 64 over I-355?

It is owned by the State Highway Agency.