US Bridges

Ill 126 over Aux Sable CR

Good

Kendall County, Illinois · 7 MI E of Ill 71 · Structure no. 047201200000000

Built
1997
28 years old
Condition
Good
inspected January 2022
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
6,650
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 126 over Aux Sable CR is a concrete continuous culvert carrying Ill 126 over Aux Sable CR in Kendall County, Illinois. It was built in 1997, so it is 28 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,650 vehicles a day, roughly 12% of them trucks, projected to reach 8,845 by 2046. The structure is 32 ft (9.9 m) long and 52 ft wide.

Location

Open in Google Maps
CarriesIll 126
CrossesAux Sable CR
Location7 MI E of Ill 71
RouteState Highway 126
CountyKendall County
StateIllinois
Coordinates41.60735, -88.29418
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: 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 rating59 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.9 m)
Longest span32 ft (9.9 m)
Deck width52 ft (15.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,650 (2023)
Projected traffic8,845 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Ill 126 over Aux Sable CR built?

It was built in 1997, making it 28 years old in 2025.

What condition is Ill 126 over Aux Sable CR 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 January 2022.

How much traffic does Ill 126 over Aux Sable CR carry?

About 6,650 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 126 over Aux Sable CR?

The structure is 32 ft (9.9 m) long with a longest span of 32 ft (9.9 m) and a deck 52 ft wide.

Who owns Ill 126 over Aux Sable CR?

It is owned by the State Highway Agency.