Structure 74316300000000 · Piatt County, IL

Ch 14 over Lake Fork Drain Dit

Carries Ch 14 over Lake Fork Drain Dit, 5.0 Mi N Atwood.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure8/9 · Very 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 FT56 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 8/9Substructure 5/9 · sets the rating

56 ft end to end, longest span 20 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.

Built197650 years old
Length56.1 ft17.1 m
Daily traffic25counted 2020
Last inspectedFebruary 2024every 24 months

Location

StateIllinois
CountyPiatt
Location5.0 Mi N Atwood
CarriesCh 14
CrossesLake Fork Drain Dit
Coordinates39.86813, -88.47363

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length56.1 ft (17.1 m)
Max Span20.0 ft (6.1 m)
Deck Width26.2 ft (8 m)
Deck Area136.8 sq m
Main Spans3
Year Built1976

Traffic

Avg Daily Traffic25 (2020)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number074316300000000

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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