Structure 77002800000000 · Pulaski County, IL

Fas 940-ch 5 Perks over Fai 57 & US 51

Carries Fas 940-ch 5 Perks over Fai 57 & US 51, 1.2 Mi S Union Co.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT204 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 8/9

204 ft end to end, longest span 60 ft: about 3 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.

Built196264 years old
Length203.7 ft62.1 m
Daily traffic350counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateIllinois
CountyPulaski
Location1.2 Mi S Union Co
CarriesFas 940-ch 5 Perks
CrossesFai 57 & US 51
Coordinates37.31587, -89.15640

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length203.7 ft (62.1 m)
Max Span60.4 ft (18.4 m)
Deck Width29.9 ft (9.1 m)
Deck Area565.1 sq m
Main Spans4
Year Built1962

Traffic

Avg Daily Traffic350 (2021)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number077002800000000

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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