US Bridges

I90 Chgo Skywayeb over Indianpls BV/US12 20

Fair

Cook County, Illinois · .9M NW 106th St. · Structure no. 016661600000000

Built
2004
21 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
578 ft
6 main spans
Daily traffic
14,350
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

I90 Chgo Skywayeb over Indianpls BV/US12 20 is a prestressed concrete stringer/multi-beam or girder carrying I90 Chgo Skywayeb over Indianpls BV/US12 20 in Cook County, Illinois. It was built in 2004, so it is 21 years old, younger 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 14,350 vehicles a day, roughly 16% of them trucks, projected to reach 14,494 by 2046. The structure is 578 ft (176.3 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesI90 Chgo Skywayeb
CrossesIndianpls BV/US12 20
Location.9M NW 106th St.
RouteInterstate 90
CountyCook County
StateIllinois
Coordinates41.70386, -87.52524
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.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length578 ft (176.3 m)
Longest span105 ft (32 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,350 (2020)
Projected traffic14,494 by 2046
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 I90 Chgo Skywayeb over Indianpls BV/US12 20 built?

It was built in 2004, making it 21 years old in 2025.

What condition is I90 Chgo Skywayeb over Indianpls BV/US12 20 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 August 2023.

How much traffic does I90 Chgo Skywayeb over Indianpls BV/US12 20 carry?

About 14,350 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I90 Chgo Skywayeb over Indianpls BV/US12 20?

The structure is 578 ft (176.3 m) long with a longest span of 105 ft (32 m) and a deck 41 ft wide.

Who owns I90 Chgo Skywayeb over Indianpls BV/US12 20?

It is owned by the City or Municipal Highway Agency.