US Bridges

Il 83 (cal-Sag RD over Navojo Creek

Fair

Cook County, Illinois · 0.8 M E Il 43 · Structure no. 016102700000000

Built
1968
57 years old, rebuilt 1979
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
15,900
2023 count
Owner
State
State Highway Agency

About this bridge

Il 83 (cal-Sag RD over Navojo Creek is a concrete continuous culvert carrying Il 83 (cal-Sag RD over Navojo Creek in Cook County, Illinois. It was built in 1968 and reconstructed in 1979, so it is 57 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 15,900 vehicles a day, roughly 6% of them trucks, projected to reach 15,756 by 2046. The structure is 24 ft (7.3 m) long.

Location

Open in Google Maps
CarriesIl 83 (cal-Sag RD
CrossesNavojo Creek
Location0.8 M E Il 43
RouteState Highway 83
CountyCook County
StateIllinois
Coordinates41.67269, -87.78049
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,900 (2023)
Projected traffic15,756 by 2046
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 (cal-Sag RD over Navojo Creek built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1979.

What condition is Il 83 (cal-Sag RD over Navojo Creek 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 December 2023.

How much traffic does Il 83 (cal-Sag RD over Navojo Creek carry?

About 15,900 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Il 83 (cal-Sag RD over Navojo Creek?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns Il 83 (cal-Sag RD over Navojo Creek?

It is owned by the State Highway Agency.