US Bridges

Skyway 84th ST Ram over 85th St.

Fair

Cook County, Illinois · .9M SW South Chgo Av · Structure no. 016656100000000

Built
2004
21 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
97 ft
1 main span
Daily traffic
500
2005 count
Owner
City
City or Municipal Highway Agency

About this bridge

Skyway 84th ST Ram over 85th St. is a steel stringer/multi-beam or girder carrying Skyway 84th ST Ram over 85th St. 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 500 vehicles a day, projected to reach 505 by 2046. The structure is 97 ft (29.5 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSkyway 84th ST Ram
Crosses85th St.
Location.9M SW South Chgo Av
CountyCook County
StateIllinois
Coordinates41.74072, -87.57356
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.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating76.1 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length97 ft (29.5 m)
Longest span93 ft (28.2 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2005)
Projected traffic505 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a toll road
National Highway SystemYes

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 Skyway 84th ST Ram over 85th St. built?

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

What condition is Skyway 84th ST Ram over 85th St. 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 Skyway 84th ST Ram over 85th St. carry?

About 500 vehicles per day (2005 count).

How long is Skyway 84th ST Ram over 85th St.?

The structure is 97 ft (29.5 m) long with a longest span of 93 ft (28.2 m) and a deck 27 ft wide.

Who owns Skyway 84th ST Ram over 85th St.?

It is owned by the City or Municipal Highway Agency.