US Bridges

Il 126 over Du Page River

Fair

Will County, Illinois · W of Il 59 · Structure no. 099009900000000

Built
1925
100 years old, rebuilt 1991
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
192 ft
4 main spans
Daily traffic
21,100
2023 count
Owner
State
State Highway Agency

About this bridge

Il 126 over Du Page River is a steel continuous stringer/multi-beam or girder carrying Il 126 over Du Page River in Will County, Illinois. It was built in 1925 and reconstructed in 1991, so it is 100 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 6 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 21,100 vehicles a day, roughly 7% of them trucks, projected to reach 30,240 by 2046. The structure is 192 ft (58.5 m) long and 52 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIl 126
CrossesDu Page River
LocationW of Il 59
RouteState Highway 126
CountyWill County
StateIllinois
Coordinates41.60844, -88.2095
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span48 ft (14.6 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,100 (2023)
Projected traffic30,240 by 2046
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$2.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 126 over Du Page River built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1991.

What condition is Il 126 over Du Page 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 May 2024.

How much traffic does Il 126 over Du Page River carry?

About 21,100 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Il 126 over Du Page River?

The structure is 192 ft (58.5 m) long with a longest span of 48 ft (14.6 m) and a deck 52 ft wide.

Who owns Il 126 over Du Page River?

It is owned by the State Highway Agency.