Structure 37003200000000 · Henry County, IL

Fai 80 NB over Fai 74

Carries Fai 80 NB over Fai 74, 3 Mi SE Colona.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT274 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

274 ft end to end, longest span 89 ft: about 4 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.

Built1961rebuilt 1988
Length274.3 ft83.6 m
Daily traffic10,750counted 2023
Last inspectedApril 2024every 12 months

Location

StateIllinois
CountyHenry
Location3 Mi SE Colona
CarriesFai 80 NB
CrossesFai 74
Coordinates41.44034, -90.33002

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length274.3 ft (83.6 m)
Max Span88.6 ft (27 m)
Deck Width50.9 ft (15.5 m)
Deck Area1295.8 sq m
Main Spans4
Year Built1961 (reconstructed 1988)

Traffic

Avg Daily Traffic10,750 (2023)
Truck Traffic41%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number037003200000000

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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