Structure 16962800000000 · Cook County, IL

NB Ramp A over I-294

Carries NB Ramp A over I-294, 0.5 M N US 66.

Overall conditionGood

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

How ratings work
Decksets the rating9/9 · Excellent
Superstructuresets the rating9/9 · Excellent
Substructuresets the rating9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT432 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 9/9

432 ft end to end, longest span 227 ft: about 6 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.

Built20224 years old
Length432.4 ft131.8 m
Daily traffic13,400counted 2024
Last inspectedMarch 2023every 24 months

Location

StateIllinois
CountyCook
Location0.5 M N US 66
CarriesNB Ramp A
CrossesI-294
Coordinates41.77001, -87.90669

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length432.4 ft (131.8 m)
Max Span227.0 ft (69.2 m)
Deck Width53.1 ft (16.2 m)
Deck Area2135.2 sq m
Main Spans2
Year Built2022

Traffic

Avg Daily Traffic13,400 (2024)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge9

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016962800000000

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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