Structure 28330800000000 · Franklin County, IL

Fau 9459 over Trib Middle Fork

Carries Fau 9459 over Trib Middle Fork, 975n 1350e.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

31 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.

Built199135 years old
Length31.5 ft9.6 m
Daily traffic600counted 2024
Last inspectedJune 2022every 48 months

Location

StateIllinois
CountyFranklin
Location975n 1350e
CarriesFau 9459
CrossesTrib Middle Fork
Coordinates38.00624, -88.90026

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length31.5 ft (9.6 m)
Max Span28.9 ft (8.8 m)
Deck Width28.2 ft (8.6 m)
Deck Area82.6 sq m
Main Spans1
Year Built1991

Traffic

Avg Daily Traffic600 (2024)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2022
Inspection FrequencyEvery 48 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number028330800000000

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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