US Bridges

I-94 NB over US 41 SB (skokie Hy)

Fair

Lake County, Illinois · US 41 SB 1M N IL-173 · Structure no. 049009400000000

Built
1958
67 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
203 ft
3 main spans
Daily traffic
28,850
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-94 NB over US 41 SB (skokie Hy) is a prestressed concrete stringer/multi-beam or girder carrying I-94 NB over US 41 SB (skokie Hy) in Lake 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 28,850 vehicles a day, roughly 25% of them trucks, projected to reach 32,522 by 2046. The structure is 203 ft (61.9 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-94 NB
CrossesUS 41 SB (skokie Hy)
LocationUS 41 SB 1M N IL-173
RouteInterstate 94
CountyLake County
StateIllinois
Coordinates42.47963, -87.94831
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating103.9 US tons
Inventory rating62.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length203 ft (61.9 m)
Longest span71 ft (21.6 m)
Deck width61 ft (18.6 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,850 (2023)
Projected traffic32,522 by 2046
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-94 NB over US 41 SB (skokie Hy) built?

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

What condition is I-94 NB over US 41 SB (skokie Hy) 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-94 NB over US 41 SB (skokie Hy) carry?

About 28,850 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is I-94 NB over US 41 SB (skokie Hy)?

The structure is 203 ft (61.9 m) long with a longest span of 71 ft (21.6 m) and a deck 61 ft wide.

Who owns I-94 NB over US 41 SB (skokie Hy)?

It is owned by the State Toll Authority.