US Bridges

US 6 over Du Page River

Fair

Will County, Illinois · 1.8 M W of I-55 · Structure no. 099009400000000

Built
1940
85 years old, rebuilt 2002
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
265 ft
4 main spans
Daily traffic
17,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 6 over Du Page River is a steel continuous stringer/multi-beam or girder carrying US 6 over Du Page River in Will County, Illinois. It was built in 1940 and reconstructed in 2002, so it is 85 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 17,100 vehicles a day, roughly 7% of them trucks, projected to reach 21,600 by 2046. The structure is 265 ft (80.7 m) long and 37 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesUS 6
CrossesDu Page River
Location1.8 M W of I-55
RouteU.S. Route 6
CountyWill County
StateIllinois
Coordinates41.42565, -88.23303
Functional classUrban Minor 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length265 ft (80.7 m)
Longest span73 ft (22.1 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,100 (2023)
Projected traffic21,600 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 6 over Du Page River built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2002.

What condition is US 6 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 October 2024.

How much traffic does US 6 over Du Page River carry?

About 17,100 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 6 over Du Page River?

The structure is 265 ft (80.7 m) long with a longest span of 73 ft (22.1 m) and a deck 37 ft wide.

Who owns US 6 over Du Page River?

It is owned by the State Highway Agency.