US Bridges

Chicago RD over Aux Sable Ck

Good

Kendall County, Illinois · 1.5 MI W of Groverd · Structure no. 047314000000000

Built
1995
30 years old
Condition
Good
inspected August 2022
Type
Slab
Concrete
Length
75 ft
3 main spans
Daily traffic
225
2024 count
Owner
County
County Highway Agency

About this bridge

Chicago RD over Aux Sable Ck is a concrete slab carrying Chicago RD over Aux Sable Ck in Kendall County, Illinois. It was built in 1995, so it is 30 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 225 vehicles a day, roughly 24% of them trucks, projected to reach 466 by 2046. The structure is 75 ft (23 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesChicago RD
CrossesAux Sable Ck
Location1.5 MI W of Groverd
RouteCounty Highway 0
Coordinates41.53336, -88.37567
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length75 ft (23 m)
Longest span25 ft (7.6 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2024)
Projected traffic466 by 2046
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Chicago RD over Aux Sable Ck built?

It was built in 1995, making it 30 years old in 2025.

What condition is Chicago RD over Aux Sable Ck 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 August 2022.

How much traffic does Chicago RD over Aux Sable Ck carry?

About 225 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is Chicago RD over Aux Sable Ck?

The structure is 75 ft (23 m) long with a longest span of 25 ft (7.6 m) and a deck 31 ft wide.

Who owns Chicago RD over Aux Sable Ck?

It is owned by the County Highway Agency.