Structure 20006400000000 · De Witt County, IL

Il 54 (fap 71) over Salt Creek

Carries Il 54 (fap 71) over Salt Creek, 3 Mi NE Farmer City.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT173 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

173 ft end to end, longest span 85 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 multi-beam bridge.

Built201016 years old
Length172.6 ft52.6 m
Daily traffic1,150counted 2023
Last inspectedJanuary 2022every 48 months

Location

StateIllinois
CountyDe Witt
Location3 Mi NE Farmer City
CarriesIl 54 (fap 71)
CrossesSalt Creek
Coordinates40.28093, -88.60410

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length172.6 ft (52.6 m)
Max Span85.0 ft (25.9 m)
Deck Width35.1 ft (10.7 m)
Deck Area562.8 sq m
Main Spans2
Year Built2010

Traffic

Avg Daily Traffic1,150 (2023)
Truck Traffic22%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number020006400000000

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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