US Bridges

I-355 over St.Joseph Creek

Fair

DuPage County, Illinois · .5 MI S. US 34 · Structure no. 022018300000000

Built
1988
37 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
73,600
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-355 over St.Joseph Creek is a concrete culvert carrying I-355 over St.Joseph Creek 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 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 73,600 vehicles a day, roughly 13% of them trucks, projected to reach 59,590 by 2046. The structure is 30 ft (9.2 m) long.

Location

Open in Google Maps
CarriesI-355
CrossesSt.Joseph Creek
Location.5 MI S. US 34
RouteInterstate 355
CountyDuPage County
StateIllinois
Coordinates41.79559, -88.05699
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length30 ft (9.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic73,600 (2023)
Projected traffic59,590 by 2046
Trucks13%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-355 over St.Joseph Creek built?

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

What condition is I-355 over St.Joseph Creek 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 August 2023.

How much traffic does I-355 over St.Joseph Creek carry?

About 73,600 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is I-355 over St.Joseph Creek?

The structure is 30 ft (9.2 m) long with a longest span of 12 ft (3.7 m).

Who owns I-355 over St.Joseph Creek?

It is owned by the State Toll Authority.