US Bridges

I-90 Skyway over Ground NW Comm Ave

Fair

Cook County, Illinois · 0.03 M NW Comm Av · Structure no. 016641200000000

Built
1958
67 years old, rebuilt 2003
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
106 ft
2 main spans
Daily traffic
28,700
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

I-90 Skyway over Ground NW Comm Ave is a steel stringer/multi-beam or girder carrying I-90 Skyway over Ground NW Comm Ave in Cook County, Illinois. It was built in 1958 and reconstructed in 2003, 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 28,700 vehicles a day, roughly 16% of them trucks, projected to reach 28,987 by 2046. The structure is 106 ft (32.2 m) long and 83 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-90 Skyway
CrossesGround NW Comm Ave
Location0.03 M NW Comm Av
RouteInterstate 90
CountyCook County
StateIllinois
Coordinates41.72495, -87.55129
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 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating66.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length106 ft (32.2 m)
Longest span51 ft (15.4 m)
Deck width83 ft (25.3 m)
Roadway width77 ft (23.6 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
CrossesOther
Detour if closed3.7 mi (6 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-90 Skyway over Ground NW Comm Ave built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2003.

What condition is I-90 Skyway over Ground NW Comm 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 August 2022.

How much traffic does I-90 Skyway over Ground NW Comm Ave carry?

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

How long is I-90 Skyway over Ground NW Comm Ave?

The structure is 106 ft (32.2 m) long with a longest span of 51 ft (15.4 m) and a deck 83 ft wide.

Who owns I-90 Skyway over Ground NW Comm Ave?

It is owned by the City or Municipal Highway Agency.