Structure 45630100000000 · Kane County, IL

Kimball-st over Fox River

Carries Kimball-st over Fox River, Downtown Elgin.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructuresets the rating3/9 · Serious
Substructure4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT447 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 3/9 · sets the ratingSubstructure 4/9

447 ft end to end, longest span 45 ft: about 6 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 box-beam bridge.

Built1917rebuilt 1998
Length446.9 ft136.2 m
Daily traffic16,900counted 2023
Last inspectedApril 2024every 24 months

Location

StateIllinois
CountyKane
LocationDowntown Elgin
CarriesKimball-st
CrossesFox River
Coordinates42.04153, -88.29024

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length446.9 ft (136.2 m)
Max Span44.9 ft (13.7 m)
Deck Width70.5 ft (21.5 m)
Deck Area2928.3 sq m
Main Spans11
Year Built1917 (reconstructed 1998)

Traffic

Avg Daily Traffic16,900 (2023)
Truck Traffic3%
Lanes On Bridge5

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number045630100000000

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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