Structure 16037700000000 · Cook County, IL

Il 53 over Salt Creek

Carries Il 53 over Salt Creek, 0.1 M N Central.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT61 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

61 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.

Built196264 years old
Length61.0 ft18.6 m
Daily traffic64,000counted 2024
Last inspectedNovember 2024every 24 months

Location

StateIllinois
CountyCook
Location0.1 M N Central
CarriesIl 53
CrossesSalt Creek
Coordinates42.06850, -88.02791

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length61.0 ft (18.6 m)
Max Span61.0 ft (18.6 m)
Deck Width210.0 ft (64 m)
Deck Area1190.4 sq m
Main Spans1
Year Built1962

Traffic

Avg Daily Traffic64,000 (2024)
Truck Traffic11%
Lanes On Bridge10

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number016037700000000

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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