Structure 11322600000000 · Christian County, IL

Tr 282a over Oak Branch

Carries Tr 282a over Oak Branch, 2mi NW Assumption.

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 FT37 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

37 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 multi-beam bridge.

Built196660 years old
Length37.1 ft11.3 m
Daily traffic150counted 2021
Last inspectedNovember 2024every 24 months

Location

StateIllinois
CountyChristian
Location2mi NW Assumption
CarriesTr 282a
CrossesOak Branch
Coordinates39.55038, -89.08097

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length37.1 ft (11.3 m)
Max Span35.1 ft (10.7 m)
Deck Width27.6 ft (8.4 m)
Deck Area94.9 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic150 (2021)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number011322600000000

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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