Structure 87355500000000 · Shelby County, IL

Ch 33 (fas 656) over Little Wabash River

Carries Ch 33 (fas 656) over Little Wabash River, 2 Mi W Of Neoga.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT174 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 8/9

174 ft end to end, longest span 57 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 box-beam bridge.

Built201313 years old
Length173.6 ft52.9 m
Daily traffic1,050counted 2024
Last inspectedMarch 2022every 48 months

Location

StateIllinois
CountyShelby
Location2 Mi W Of Neoga
CarriesCh 33 (fas 656)
CrossesLittle Wabash River
Coordinates39.31662, -88.50119

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length173.6 ft (52.9 m)
Max Span57.4 ft (17.5 m)
Deck Width29.9 ft (9.1 m)
Deck Area481.4 sq m
Main Spans3
Year Built2013

Traffic

Avg Daily Traffic1,050 (2024)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2022
Inspection FrequencyEvery 48 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number087355500000000

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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