US Bridges

I90 EB (nw Toll) over Des Plaines Riv

Fair

Cook County, Illinois · 0.7M E I294 P9 · Structure no. 016996400000000

Built
1958
67 years old, rebuilt 1974
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
205 ft
3 main spans
Daily traffic
128,300
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I90 EB (nw Toll) over Des Plaines Riv is a prestressed concrete stringer/multi-beam or girder carrying I90 EB (nw Toll) over Des Plaines Riv in Cook County, Illinois. It was built in 1958 and reconstructed in 1974, 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 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 128,300 vehicles a day, roughly 4% of them trucks, projected to reach 171,700 by 2046. The structure is 205 ft (62.5 m) long and 158 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI90 EB (nw Toll)
CrossesDes Plaines Riv
Location0.7M E I294 P9
RouteInterstate 90
CountyCook County
StateIllinois
Coordinates41.98498, -87.85703
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length205 ft (62.5 m)
Longest span81 ft (24.7 m)
Deck width158 ft (48.2 m)
Roadway width148 ft (45.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128,300 (2023)
Projected traffic171,700 by 2046
Trucks4%
Lanes on structure8
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 EB (nw Toll) over Des Plaines Riv built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1974.

What condition is I90 EB (nw Toll) over Des Plaines Riv 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 I90 EB (nw Toll) over Des Plaines Riv carry?

About 128,300 vehicles per day (2023 count), of which roughly 4% are trucks.

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

The structure is 205 ft (62.5 m) long with a longest span of 81 ft (24.7 m) and a deck 158 ft wide.

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

It is owned by the State Toll Authority.