Structure 99462200000000 · Will County, IL

Il 59 over Du Page Rvr Overflw

Carries Il 59 over Du Page Rvr Overflw, 0.5 M N Of Il 126.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT109 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

109 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.

Built200224 years old
Length109.3 ft33.3 m
Daily traffic32,100counted 2023
Last inspectedJuly 2024every 24 months

Location

StateIllinois
CountyWill
Location0.5 M N Of Il 126
CarriesIl 59
CrossesDu Page Rvr Overflw
Coordinates41.61774, -88.20263

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length109.3 ft (33.3 m)
Max Span101.7 ft (31 m)
Deck Width74.8 ft (22.8 m)
Deck Area759.2 sq m
Main Spans1
Year Built2002

Traffic

Avg Daily Traffic32,100 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number099462200000000

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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