US Bridges

I-355 over Lacey Creek

Fair

DuPage County, Illinois · 2 MI N. of US 34 · Structure no. 022018400000000

Built
1988
37 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
104,200
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-355 over Lacey Creek is a concrete culvert carrying I-355 over Lacey 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 104,200 vehicles a day, roughly 14% of them trucks, projected to reach 59,590 by 2046. The structure is 28 ft (8.6 m) long.

Location

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CarriesI-355
CrossesLacey Creek
Location2 MI N. of US 34
RouteInterstate 355
CountyDuPage County
StateIllinois
Coordinates41.81682, -88.02822
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 protection7 GoodSome minor problems.
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 rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length28 ft (8.6 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 traffic104,200 (2023)
Projected traffic59,590 by 2046
Trucks14%
Lanes on structure8
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 Lacey Creek built?

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

What condition is I-355 over Lacey 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 Lacey Creek carry?

About 104,200 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-355 over Lacey Creek?

The structure is 28 ft (8.6 m) long with a longest span of 12 ft (3.7 m).

Who owns I-355 over Lacey Creek?

It is owned by the State Toll Authority.