US Bridges

I-88 EB over Ill 26

Good

Lee County, Illinois · S Edge of Dixon · Structure no. 052992100000000

Built
1974
51 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
199 ft
4 main spans
Daily traffic
7,850
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-88 EB over Ill 26 is a prestressed concrete stringer/multi-beam or girder carrying I-88 EB over Ill 26 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,850 vehicles a day, roughly 30% of them trucks, projected to reach 6,161 by 2046. The structure is 199 ft (60.7 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-88 EB
CrossesIll 26
LocationS Edge of Dixon
RouteInterstate 88
Coordinates41.81844, -89.47377
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length199 ft (60.7 m)
Longest span70 ft (21.3 m)
Deck width45 ft (13.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,850 (2023)
Projected traffic6,161 by 2046
Trucks30%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 EB over Ill 26 built?

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

What condition is I-88 EB over Ill 26 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does I-88 EB over Ill 26 carry?

About 7,850 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is I-88 EB over Ill 26?

The structure is 199 ft (60.7 m) long with a longest span of 70 ft (21.3 m) and a deck 45 ft wide.

Who owns I-88 EB over Ill 26?

It is owned by the State Toll Authority.