Structure 45312400000000 · Kane County, IL

Coombs Road over Dm&e Rr

Carries Coombs Road over Dm&e Rr, I N.highland RD.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT161 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

161 ft end to end, longest span 53 ft: about 2 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.

Built1984rebuilt 2022
Length160.8 ft49 m
Daily traffic5,450counted 2023
Last inspectedDecember 2024every 48 months

Location

StateIllinois
CountyKane
LocationI N.highland RD
CarriesCoombs Road
CrossesDm&e Rr
Coordinates42.06032, -88.37651

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length160.8 ft (49 m)
Max Span53.1 ft (16.2 m)
Deck Width35.8 ft (10.9 m)
Deck Area534.1 sq m
Main Spans3
Year Built1984 (reconstructed 2022)

Traffic

Avg Daily Traffic5,450 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 48 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number045312400000000

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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