US Bridges

I- 90 94 Seb Jfk over Kostner Ave

Fair

Cook County, Illinois · 0.5 M SE Il 50 · Structure no. 016011200000000

Built
1957
68 years old, rebuilt 1993
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
214 ft
3 main spans
Daily traffic
120,500
2024 count
Owner
State
State Highway Agency

About this bridge

I- 90 94 Seb Jfk over Kostner Ave is a steel continuous stringer/multi-beam or girder carrying I- 90 94 Seb Jfk over Kostner Ave in Cook County, Illinois. It was built in 1957 and reconstructed in 1993, so it is 68 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 120,500 vehicles a day, roughly 5% of them trucks, projected to reach 113,878 by 2046. The structure is 214 ft (65.1 m) long and 128 ft wide.

Location

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CarriesI- 90 94 Seb Jfk
CrossesKostner Ave
Location0.5 M SE Il 50
RouteInterstate 90
CountyCook County
StateIllinois
Coordinates41.95705, -87.73713
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 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 alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length214 ft (65.1 m)
Longest span76 ft (23.2 m)
Deck width128 ft (39 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120,500 (2024)
Projected traffic113,878 by 2046
Trucks5%
Lanes on structure6
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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- 90 94 Seb Jfk over Kostner Ave built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1993.

What condition is I- 90 94 Seb Jfk over Kostner Ave 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 December 2023.

How much traffic does I- 90 94 Seb Jfk over Kostner Ave carry?

About 120,500 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is I- 90 94 Seb Jfk over Kostner Ave?

The structure is 214 ft (65.1 m) long with a longest span of 76 ft (23.2 m) and a deck 128 ft wide.

Who owns I- 90 94 Seb Jfk over Kostner Ave?

It is owned by the State Highway Agency.