Structure 6424000000000 · Bureau County, IL

Tr 235c over Coal Creek

Carries Tr 235c over Coal Creek, 3 Mi E Of Mineral.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure and Substructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT51 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 4/9Substructure 4/9

51 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 bridge of this kind.

Built1925101 years old
Length50.9 ft15.5 m
Daily traffic10counted 2010
Last inspectedNovember 2023every 24 months

Location

StateIllinois
CountyBureau
Location3 Mi E Of Mineral
CarriesTr 235c
CrossesCoal Creek
Coordinates41.38685, -89.78462

Physical Characteristics

MaterialConcrete
DesignOther
Total Length50.9 ft (15.5 m)
Max Span48.9 ft (14.9 m)
Deck Width22.0 ft (6.7 m)
Deck Area103.8 sq m
Main Spans1
Year Built1925

Traffic

Avg Daily Traffic10 (2010)
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number006424000000000

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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