Structure 16654400000000 · Cook County, IL

Lake Shore DR over Pedestrian Underpass

Carries Lake Shore DR over Pedestrian Underpass, 5900 S Lake Shore DR.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT38 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 7/9

38 ft end to end. Lengths and the car 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 rigid-frame bridge.

Built200422 years old
Length38.4 ft11.7 m
Daily traffic36,700counted 2023
Last inspectedNovember 2024every 24 months

Location

StateIllinois
CountyCook
Location5900 S Lake Shore DR
CarriesLake Shore DR
CrossesPedestrian Underpass
Coordinates41.78857, -87.57797

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length38.4 ft (11.7 m)
Max Span37.1 ft (11.3 m)
Deck Width103.0 ft (31.4 m)
Deck Area367.4 sq m
Main Spans1
Year Built2004

Traffic

Avg Daily Traffic36,700 (2023)
Truck Traffic1%
Lanes On Bridge5

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016654400000000

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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