Structure 16269100000000 · Cook County, IL

Waldron Drive over Pedestrian Underpass

Carries Waldron Drive over Pedestrian Underpass, 400e 1500s.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT54 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

54 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 box-beam bridge.

Built199729 years old
Length54.1 ft16.5 m
Daily traffic775counted 2022
Last inspectedOctober 2022every 48 months

Location

StateIllinois
CountyCook
Location400e 1500s
CarriesWaldron Drive
CrossesPedestrian Underpass
Coordinates41.86032, -87.61707

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length54.1 ft (16.5 m)
Max Span51.2 ft (15.6 m)
Deck Width54.1 ft (16.5 m)
Deck Area272.2 sq m
Main Spans1
Year Built1997

Traffic

Avg Daily Traffic775 (2022)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016269100000000

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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