Structure 54003100000000 · Logan County, IL

Il 54 over Lake Fork Creek

Carries Il 54 over Lake Fork Creek, 1.5m NE Cornland Ctr.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT395 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

395 ft end to end, longest span 80 ft: about 5 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.

Built1940rebuilt 1999
Length395.3 ft120.5 m
Daily traffic1,400counted 2023
Last inspectedMay 2022every 48 months

Location

StateIllinois
CountyLogan
Location1.5m NE Cornland Ctr
CarriesIl 54
CrossesLake Fork Creek
Coordinates39.95141, -89.38336

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length395.3 ft (120.5 m)
Max Span80.4 ft (24.5 m)
Deck Width34.8 ft (10.6 m)
Deck Area1277.3 sq m
Main Spans6
Year Built1940 (reconstructed 1999)

Traffic

Avg Daily Traffic1,400 (2023)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number054003100000000

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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