Structure 54007600000000 · Logan County, IL

Fai 155 SB over Icg Rr

Carries Fai 155 SB over Icg Rr, 2.7mi S I-155/IL136.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT143 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

143 ft end to end, longest span 54 ft. 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.

Built198838 years old
Length143.0 ft43.6 m
Daily traffic5,300counted 2023
Last inspectedAugust 2024every 24 months

Location

StateIllinois
CountyLogan
Location2.7mi S I-155/IL136
CarriesFai 155 SB
CrossesIcg Rr
Coordinates40.26802, -89.45706

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length143.0 ft (43.6 m)
Max Span54.1 ft (16.5 m)
Deck Width43.3 ft (13.2 m)
Deck Area575.5 sq m
Main Spans3
Year Built1988

Traffic

Avg Daily Traffic5,300 (2023)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number054007600000000

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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