US Bridges

Il 83 (sibley Blv over RR - UP

Fair

Cook County, Illinois · 1.5 M W I-94 · Structure no. 016095500000000

Built
1936
89 years old, rebuilt 1984
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
535 ft
11 main spans
Daily traffic
34,200
2023 count
Owner
State
State Highway Agency

About this bridge

Il 83 (sibley Blv over RR - UP is a steel continuous stringer/multi-beam or girder carrying Il 83 (sibley Blv over RR - UP in Cook County, Illinois. It was built in 1936 and reconstructed in 1984, so it is 89 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 34,200 vehicles a day, roughly 5% of them trucks, projected to reach 31,209 by 2046. The structure is 535 ft (163.1 m) long and 56 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesIl 83 (sibley Blv
CrossesRR - UP
Location1.5 M W I-94
RouteState Highway 83
CountyCook County
StateIllinois
Coordinates41.62264, -87.61334
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length535 ft (163.1 m)
Longest span50 ft (15.2 m)
Deck width56 ft (17.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,200 (2023)
Projected traffic31,209 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$6.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 83 (sibley Blv over RR - UP built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1984.

What condition is Il 83 (sibley Blv over RR - UP 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 November 2023.

How much traffic does Il 83 (sibley Blv over RR - UP carry?

About 34,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Il 83 (sibley Blv over RR - UP?

The structure is 535 ft (163.1 m) long with a longest span of 50 ft (15.2 m) and a deck 56 ft wide.

Who owns Il 83 (sibley Blv over RR - UP?

It is owned by the State Highway Agency.