Structure 60011800000000 · Madison County, IL

Il 111 - Homer Ada over US 67

Carries Il 111 - Homer Ada over US 67, 1 M E Jct 111.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT476 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

476 ft end to end, longest span 131 ft: about 7 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.

Built1958rebuilt 1994
Length476.0 ft145.1 m
Daily traffic14,100counted 2023
Last inspectedAugust 2023every 24 months

Location

StateIllinois
CountyMadison
Location1 M E Jct 111
CarriesIl 111 - Homer Ada
CrossesUS 67
Coordinates38.92252, -90.18080

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length476.0 ft (145.1 m)
Max Span130.9 ft (39.9 m)
Deck Width115.5 ft (35.2 m)
Deck Area5107.5 sq m
Main Spans4
Year Built1958 (reconstructed 1994)

Traffic

Avg Daily Traffic14,100 (2023)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number060011800000000

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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