Structure 16204800000000 · Cook County, IL

Grand AVE over I- 90 94 Jfk

Carries Grand AVE over I- 90 94 Jfk, 1.1 M N&nw I-290.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 2 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating2/9 · Critical
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT357 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 2/9 · sets the ratingSubstructure 7/9

357 ft end to end, longest span 129 ft: about 5 semi-trucks nose to tail. 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.

Built1959rebuilt 1998
Length357.0 ft108.8 m
Daily traffic8,900counted 2022
Last inspectedOctober 2024every 12 months

Location

StateIllinois
CountyCook
Location1.1 M N&nw I-290
CarriesGrand AVE
CrossesI- 90 94 Jfk
Coordinates41.89114, -87.65116

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length357.0 ft (108.8 m)
Max Span128.6 ft (39.2 m)
Deck Width83.0 ft (25.3 m)
Deck Area2752.6 sq m
Main Spans4
Year Built1959 (reconstructed 1998)

Traffic

Avg Daily Traffic8,900 (2022)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge10

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016204800000000

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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