US Bridges

I-88 Ramp over I-88

Fair

Lee County, Illinois · .4 MI W JCT Ill 26 · Structure no. 052992300000000

Built
1974
51 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
233 ft
4 main spans
Daily traffic
3,450
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-88 Ramp over I-88 is a prestressed concrete stringer/multi-beam or girder carrying I-88 Ramp over I-88 in Lee County, Illinois. It was built in 1974, so it is 51 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 3,450 vehicles a day, projected to reach 1,111 by 2046. The structure is 233 ft (71 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-88 Ramp
CrossesI-88
Location.4 MI W JCT Ill 26
CountyLee County
StateIllinois
Coordinates41.81897, -89.46627
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating53.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length233 ft (71 m)
Longest span85 ft (25.9 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,450 (2023)
Projected traffic1,111 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$962,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-88 Ramp over I-88 built?

It was built in 1974, making it 51 years old in 2025.

What condition is I-88 Ramp over I-88 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 July 2024.

How much traffic does I-88 Ramp over I-88 carry?

About 3,450 vehicles per day (2023 count).

How long is I-88 Ramp over I-88?

The structure is 233 ft (71 m) long with a longest span of 85 ft (25.9 m) and a deck 44 ft wide.

Who owns I-88 Ramp over I-88?

It is owned by the State Toll Authority.