US Bridges

IL31 Rmp to I88WB over I-88 E-W Toll

Fair

Kane County, Illinois · 0.2MI W of IL31 · Structure no. 045993100000000

Built
2008
17 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
181 ft
2 main spans
Daily traffic
1,850
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

IL31 Rmp to I88WB over I-88 E-W Toll is a prestressed concrete stringer/multi-beam or girder carrying IL31 Rmp to I88WB over I-88 E-W Toll in Kane County, Illinois. It was built in 2008, so it is 17 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 1,850 vehicles a day, projected to reach 1,830 by 2046. The structure is 181 ft (55.3 m) long and 71 ft wide.

Location

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CarriesIL31 Rmp to I88WB
CrossesI-88 E-W Toll
Location0.2MI W of IL31
CountyKane County
StateIllinois
Coordinates41.79595, -88.32753
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length181 ft (55.3 m)
Longest span97 ft (29.5 m)
Deck width71 ft (21.5 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,850 (2023)
Projected traffic1,830 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IL31 Rmp to I88WB over I-88 E-W Toll built?

It was built in 2008, making it 17 years old in 2025.

What condition is IL31 Rmp to I88WB over I-88 E-W Toll 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 IL31 Rmp to I88WB over I-88 E-W Toll carry?

About 1,850 vehicles per day (2023 count).

How long is IL31 Rmp to I88WB over I-88 E-W Toll?

The structure is 181 ft (55.3 m) long with a longest span of 97 ft (29.5 m) and a deck 71 ft wide.

Who owns IL31 Rmp to I88WB over I-88 E-W Toll?

It is owned by the State Toll Authority.