US Bridges

Il 83 (sibley Blv over Little Cal River

Fair

Cook County, Illinois · 1 M E Il 1 · Structure no. 016095400000000

Built
1922
103 years old, rebuilt 1984
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
192 ft
4 main spans
Daily traffic
27,200
2023 count
Owner
State
State Highway Agency

About this bridge

Il 83 (sibley Blv over Little Cal River is a steel continuous stringer/multi-beam or girder carrying Il 83 (sibley Blv over Little Cal River in Cook County, Illinois. It was built in 1922 and reconstructed in 1984, so it is 103 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 27,200 vehicles a day, roughly 5% of them trucks, projected to reach 26,361 by 2046. The structure is 192 ft (58.5 m) long and 55 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIl 83 (sibley Blv
CrossesLittle Cal River
Location1 M E Il 1
RouteState Highway 83
Coordinates41.62262, -87.62773
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating44.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span48 ft (14.6 m)
Deck width55 ft (16.8 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,200 (2023)
Projected traffic26,361 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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$3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 83 (sibley Blv over Little Cal River built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1984.

What condition is Il 83 (sibley Blv over Little Cal River 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 June 2024.

How much traffic does Il 83 (sibley Blv over Little Cal River carry?

About 27,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Il 83 (sibley Blv over Little Cal River?

The structure is 192 ft (58.5 m) long with a longest span of 48 ft (14.6 m) and a deck 55 ft wide.

Who owns Il 83 (sibley Blv over Little Cal River?

It is owned by the State Highway Agency.