Structure 16015000000000 · Cook County, IL

I- 94 SB Bishop Fo over Rr - Ns & Woodlawn A

Carries I- 94 SB Bishop Fo over Rr - Ns & Woodlawn A, 1.7 M SE I-57.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT597 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

597 ft end to end, longest span 78 ft: about 1.7 football fields. 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.

Built1960rebuilt 2001
Length596.8 ft181.9 m
Daily traffic68,500counted 2024
Last inspectedDecember 2024every 24 months

Location

StateIllinois
CountyCook
Location1.7 M SE I-57
CarriesI- 94 SB Bishop Fo
CrossesRr - Ns & Woodlawn A
Coordinates41.71119, -87.59531

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length596.8 ft (181.9 m)
Max Span78.4 ft (23.9 m)
Deck Width44.6 ft (13.6 m)
Deck Area2473.8 sq m
Main Spans9
Year Built1960 (reconstructed 2001)

Traffic

Avg Daily Traffic68,500 (2024)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016015000000000

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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