US Bridges

Il 59 over Du Page River

Fair

Will County, Illinois · 0.1 M S US 52 · Structure no. 099028400000000

Built
1991
34 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
242 ft
4 main spans
Daily traffic
19,300
2023 count
Owner
State
State Highway Agency

About this bridge

Il 59 over Du Page River is a prestressed concrete continuous stringer/multi-beam or girder carrying Il 59 over Du Page River in Will County, Illinois. It was built in 1991, so it is 34 years old, younger 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 19,300 vehicles a day, roughly 7% of them trucks, projected to reach 29,664 by 2046. The structure is 242 ft (73.8 m) long and 75 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesIl 59
CrossesDu Page River
Location0.1 M S US 52
RouteState Highway 59
Coordinates41.5203, -88.1986
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span59 ft (18.1 m)
Deck width75 ft (23 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,300 (2023)
Projected traffic29,664 by 2046
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 59 over Du Page River built?

It was built in 1991, making it 34 years old in 2025.

What condition is Il 59 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 September 2024.

How much traffic does Il 59 over Du Page River carry?

About 19,300 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Il 59 over Du Page River?

The structure is 242 ft (73.8 m) long with a longest span of 59 ft (18.1 m) and a deck 75 ft wide.

Who owns Il 59 over Du Page River?

It is owned by the State Highway Agency.