US Bridges

I90 WB (nw Toll) over Des Plaines Riv

Good

Cook County, Illinois · 0.7 M E I294 P9 · Structure no. 016987900000000

Built
1958
67 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
225 ft
3 main spans
Daily traffic
64,150
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I90 WB (nw Toll) over Des Plaines Riv is a prestressed concrete stringer/multi-beam or girder carrying I90 WB (nw Toll) over Des Plaines Riv 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 64,150 vehicles a day, roughly 4% of them trucks, projected to reach 85,850 by 2046. The structure is 225 ft (68.6 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI90 WB (nw Toll)
CrossesDes Plaines Riv
Location0.7 M E I294 P9
RouteInterstate 90
Coordinates41.98481, -87.85631
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating28.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length225 ft (68.6 m)
Longest span81 ft (24.7 m)
Deck width61 ft (18.6 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,150 (2023)
Projected traffic85,850 by 2046
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 I90 WB (nw Toll) over Des Plaines Riv built?

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

What condition is I90 WB (nw Toll) over Des Plaines Riv in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does I90 WB (nw Toll) over Des Plaines Riv carry?

About 64,150 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is I90 WB (nw Toll) over Des Plaines Riv?

The structure is 225 ft (68.6 m) long with a longest span of 81 ft (24.7 m) and a deck 61 ft wide.

Who owns I90 WB (nw Toll) over Des Plaines Riv?

It is owned by the State Toll Authority.