Structure 57341500000000 · McLean County, IL

Tr 433 over Little Kickapoo CR

Carries Tr 433 over Little Kickapoo CR, 4.3 Mi W Downs.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

75 ft end to end, longest span 28 ft. 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 slab bridge.

Built196858 years old
Length74.8 ft22.8 m
Daily traffic75counted 2024
Last inspectedSeptember 2023every 24 months

Location

StateIllinois
CountyMcLean
Location4.3 Mi W Downs
CarriesTr 433
CrossesLittle Kickapoo CR
Coordinates40.40034, -88.95198

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length74.8 ft (22.8 m)
Max Span27.9 ft (8.5 m)
Deck Width26.9 ft (8.2 m)
Deck Area187.0 sq m
Main Spans3
Year Built1968

Traffic

Avg Daily Traffic75 (2024)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number057341500000000

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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