US Bridges

I-88 Ramp (glidden over I-88

Fair

DeKalb County, Illinois · W Edge of Dekalb · Structure no. 019990700000000

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

About this bridge

I-88 Ramp (glidden over I-88 is a prestressed concrete stringer/multi-beam or girder carrying I-88 Ramp (glidden over I-88 in DeKalb 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.

No traffic count is recorded. The structure is 237 ft (72.2 m) long and 44 ft wide.

Location

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CarriesI-88 Ramp (glidden
CrossesI-88
LocationW Edge of Dekalb
CountyDeKalb County
StateIllinois
Coordinates41.90267, -88.77414
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length237 ft (72.2 m)
Longest span91 ft (27.7 m)
Deck width44 ft (13.3 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic560 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 I-88 Ramp (glidden over I-88 built?

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

What condition is I-88 Ramp (glidden 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 August 2024.

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

No traffic count is recorded for this structure.

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

The structure is 237 ft (72.2 m) long with a longest span of 91 ft (27.7 m) and a deck 44 ft wide.

Who owns I-88 Ramp (glidden over I-88?

It is owned by the State Toll Authority.