Structure 16261200000000 · Cook County, IL

Pulaski RD over N Br Chicago River

Carries Pulaski RD over N Br Chicago River, 1 M N Il 21.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 6/9

101 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 multi-beam bridge.

Built199432 years old
Length101.4 ft30.9 m
Daily traffic16,200counted 2023
Last inspectedMarch 2023every 24 months

Location

StateIllinois
CountyCook
Location1 M N Il 21
CarriesPulaski RD
CrossesN Br Chicago River
Coordinates41.97482, -87.72822

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length101.4 ft (30.9 m)
Max Span100.1 ft (30.5 m)
Deck Width78.1 ft (23.8 m)
Deck Area735.4 sq m
Main Spans1
Year Built1994

Traffic

Avg Daily Traffic16,200 (2023)
Truck Traffic6%
Lanes On Bridge5

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number016261200000000

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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