Structure 17363500000000 · Crawford County, IL

Tr 285 over Brushy Creek

Carries Tr 285 over Brushy Creek, 0.3 Mi N Flat Rock.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT53 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 8/9

53 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 box-beam bridge.

Built199630 years old
Length53.1 ft16.2 m
Daily traffic20counted 2020
Last inspectedJanuary 2023every 24 months

Location

StateIllinois
CountyCrawford
Location0.3 Mi N Flat Rock
CarriesTr 285
CrossesBrushy Creek
Coordinates38.91526, -87.66713

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length53.1 ft (16.2 m)
Max Span50.5 ft (15.4 m)
Deck Width27.9 ft (8.5 m)
Deck Area137.7 sq m
Main Spans1
Year Built1996

Traffic

Avg Daily Traffic20 (2020)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number017363500000000

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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