Structure 22310800000000 · DuPage County, IL

Ch-14 (eola Rd) over Bn Railroad

Carries Ch-14 (eola Rd) over Bn Railroad, .43 Mi S N Aurora RD.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT383 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

383 ft end to end, longest span 102 ft: about 5 semi-trucks nose to tail. 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.

Built199432 years old
Length383.2 ft116.8 m
Daily traffic37,800counted 2024
Last inspectedOctober 2024every 24 months

Location

StateIllinois
CountyDuPage
Location.43 Mi S N Aurora RD
CarriesCh-14 (eola Rd)
CrossesBn Railroad
Coordinates41.77533, -88.24114

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length383.2 ft (116.8 m)
Max Span102.0 ft (31.1 m)
Deck Width70.2 ft (21.4 m)
Deck Area2499.5 sq m
Main Spans4
Year Built1994

Traffic

Avg Daily Traffic37,800 (2024)
Truck Traffic6%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number022310800000000

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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