Structure 60002200000000 · Madison County, IL

Fai 70 WB over Fai 55 NB & SB

Carries Fai 70 WB over Fai 55 NB & SB, Fai 70 & Fai 55.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT419 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

419 ft end to end, longest span 119 ft: about 6 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.

Built1963rebuilt 1996
Length419.0 ft127.7 m
Daily traffic23,050counted 2023
Last inspectedDecember 2024every 24 months

Location

StateIllinois
CountyMadison
LocationFai 70 & Fai 55
CarriesFai 70 WB
CrossesFai 55 NB & SB
Coordinates38.74812, -89.90708

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length419.0 ft (127.7 m)
Max Span119.1 ft (36.3 m)
Deck Width43.3 ft (13.2 m)
Deck Area1685.6 sq m
Main Spans4
Year Built1963 (reconstructed 1996)

Traffic

Avg Daily Traffic23,050 (2023)
Truck Traffic27%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number060002200000000

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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