US Bridges

I-90/I-90W to I-29 over Willow Creek

Fair

Cook County, Illinois · 0.2 M E I294 P9 · Structure no. 016995000000000

Built
1958
67 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
49 ft
2 main spans
Daily traffic
140,700
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90/I-90W to I-29 over Willow Creek is a concrete culvert carrying I-90/I-90W to I-29 over Willow Creek in Cook County, Illinois. It was built in 1958, so it is 67 years old, older 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 140,700 vehicles a day, roughly 3% of them trucks, projected to reach 186,500 by 2046. The structure is 49 ft (14.9 m) long.

Location

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CarriesI-90/I-90W to I-29
CrossesWillow Creek
Location0.2 M E I294 P9
CountyCook County
StateIllinois
Coordinates41.98894, -87.86452
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 inspectionMay 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 rating53.9 US tons
Inventory rating32.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140,700 (2023)
Projected traffic186,500 by 2046
Trucks3%
Lanes on structure8
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-90/I-90W to I-29 over Willow Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is I-90/I-90W to I-29 over Willow 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 May 2023.

How much traffic does I-90/I-90W to I-29 over Willow Creek carry?

About 140,700 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is I-90/I-90W to I-29 over Willow Creek?

The structure is 49 ft (14.9 m) long with a longest span of 20 ft (6.1 m).

Who owns I-90/I-90W to I-29 over Willow Creek?

It is owned by the State Toll Authority.