US Bridges

I90 Chgo Skyway over 105th Ramp 2 WB Skwy

Fair

Cook County, Illinois · .2M NW of 106th · Structure no. 016661500000000

Built
2004
21 years old
Condition
Fair
inspected August 2023
Type
Culvert
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
28,700
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

I90 Chgo Skyway over 105th Ramp 2 WB Skwy is a prestressed concrete culvert carrying I90 Chgo Skyway over 105th Ramp 2 WB Skwy 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 28,700 vehicles a day, roughly 16% of them trucks, projected to reach 28,987 by 2046. The structure is 32 ft (9.7 m) long and 42 ft wide.

CarriesI90 Chgo Skyway
Crosses105th Ramp 2 WB Skwy
Location.2M NW of 106th
RouteInterstate 90
Coordinates41.70504, -87.52636
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
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span29 ft (8.9 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,700 (2020)
Projected traffic28,987 by 2046
Trucks16%
Lanes on structure6
Traffic directionTwo-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 Skyway over 105th Ramp 2 WB Skwy built?

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

What condition is I90 Chgo Skyway over 105th Ramp 2 WB Skwy 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 Skyway over 105th Ramp 2 WB Skwy carry?

About 28,700 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I90 Chgo Skyway over 105th Ramp 2 WB Skwy?

The structure is 32 ft (9.7 m) long with a longest span of 29 ft (8.9 m) and a deck 42 ft wide.

Who owns I90 Chgo Skyway over 105th Ramp 2 WB Skwy?

It is owned by the City or Municipal Highway Agency.