US Bridges

Il 83/US6 Torrenc over Little Cal River

Good

Cook County, Illinois · 0.43 M S of 159th ST · Structure no. 016130200000000

Built
2019
6 years old
Condition
Good
inspected March 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
216 ft
3 main spans
Daily traffic
20,900
2023 count
Owner
State
State Highway Agency

About this bridge

Il 83/US6 Torrenc over Little Cal River is a steel continuous stringer/multi-beam or girder carrying Il 83/US6 Torrenc over Little Cal River in Cook County, Illinois. It was built in 2019, so it is 6 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20,900 vehicles a day, roughly 3% of them trucks, projected to reach 22,422 by 2046. The structure is 216 ft (65.8 m) long and 96 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIl 83/US6 Torrenc
CrossesLittle Cal River
Location0.43 M S of 159th ST
RouteU.S. Route 6
Coordinates41.59471, -87.55871
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating51.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length216 ft (65.8 m)
Longest span78 ft (23.8 m)
Deck width96 ft (29.2 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,900 (2023)
Projected traffic22,422 by 2046
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 83/US6 Torrenc over Little Cal River built?

It was built in 2019, making it 6 years old in 2025.

What condition is Il 83/US6 Torrenc over Little Cal River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2022.

How much traffic does Il 83/US6 Torrenc over Little Cal River carry?

About 20,900 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Il 83/US6 Torrenc over Little Cal River?

The structure is 216 ft (65.8 m) long with a longest span of 78 ft (23.8 m) and a deck 96 ft wide.

Who owns Il 83/US6 Torrenc over Little Cal River?

It is owned by the State Highway Agency.