Structure 16633800000000 · Cook County, IL

Columbus DR over Lower E North Water ST

Carries Columbus DR over Lower E North Water ST, 300e& 400n.to 500n..

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT591 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

591 ft end to end, longest span 122 ft: about 1.6 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.

Built198244 years old
Length590.9 ft180.1 m
Daily traffic18,600counted 2022
Last inspectedAugust 2024every 24 months

Location

StateIllinois
CountyCook
Location300e& 400n.to 500n.
CarriesColumbus DR
CrossesLower E North Water ST
Coordinates41.88964, -87.62038

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length590.9 ft (180.1 m)
Max Span122.0 ft (37.2 m)
Deck Width109.9 ft (33.5 m)
Deck Area6033.4 sq m
Main Spans9
Year Built1982

Traffic

Avg Daily Traffic18,600 (2022)
Truck Traffic4%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016633800000000

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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