Structure 16960000000000 · Cook County, IL

I-80 EB over Grand Trunk Rr

Carries I-80 EB over Grand Trunk Rr, 0.2 M W Of Il-394.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT254 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

254 ft end to end, longest span 106 ft: about 4 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.

Built200620 years old
Length253.6 ft77.3 m
Daily traffic87,000counted 2023
Last inspectedMay 2023every 24 months

Location

StateIllinois
CountyCook
Location0.2 M W Of Il-394
CarriesI-80 EB
CrossesGrand Trunk Rr
Coordinates41.57762, -87.58929

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length253.6 ft (77.3 m)
Max Span106.3 ft (32.4 m)
Deck Width77.8 ft (23.7 m)
Deck Area1832.0 sq m
Main Spans3
Year Built2006

Traffic

Avg Daily Traffic87,000 (2023)
Truck Traffic22%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016960000000000

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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