Structure 22998200000000 · DuPage County, IL

I-355 over Jackson Ave.

Carries I-355 over Jackson Ave., 1m.e.of Il-53.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT142 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

142 ft end to end, longest span 63 ft. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built198937 years old
Length142.1 ft43.3 m
Daily traffic144,300counted 2023
Last inspectedApril 2024every 24 months

Location

StateIllinois
CountyDuPage
Location1m.e.of Il-53
CarriesI-355
CrossesJackson Ave.
Coordinates41.77584, -88.04938

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length142.1 ft (43.3 m)
Max Span63.0 ft (19.2 m)
Deck Width172.6 ft (52.6 m)
Deck Area2277.6 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic144,300 (2023)
Truck Traffic13%
Lanes On Bridge9
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number022998200000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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