US Bridges

I-94 SB over Old Skokie HWY

Fair

Lake County, Illinois · I94 1.2M N Ill 173 · Structure no. 049991500000000

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

About this bridge

I-94 SB over Old Skokie HWY is a prestressed concrete stringer/multi-beam or girder carrying I-94 SB over Old Skokie HWY 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 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 28,850 vehicles a day, roughly 25% of them trucks, projected to reach 32,522 by 2046. The structure is 128 ft (39 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-94 SB
CrossesOld Skokie HWY
LocationI94 1.2M N Ill 173
RouteInterstate 94
CountyLake County
StateIllinois
Coordinates42.47781, -87.95018
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length128 ft (39 m)
Longest span42 ft (12.8 m)
Deck width39 ft (12 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 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-94 SB over Old Skokie HWY built?

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

What condition is I-94 SB over Old Skokie HWY 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 SB over Old Skokie HWY carry?

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

How long is I-94 SB over Old Skokie HWY?

The structure is 128 ft (39 m) long with a longest span of 42 ft (12.8 m) and a deck 39 ft wide.

Who owns I-94 SB over Old Skokie HWY?

It is owned by the State Toll Authority.