Structure 82034900000000 · St. Clair County, IL

Mlk EB To I-55/64 over Reloc Il RT 3/rr

Carries Mlk EB To I-55/64 over Reloc Il RT 3/rr, 0.7 Mi E Of Miss. River.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT983 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

983 ft end to end, longest span 152 ft: about 2.7 football fields. 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.

Built201511 years old
Length983.3 ft299.7 m
Daily traffic2,650counted 2024
Last inspectedMay 2023every 24 months

Location

StateIllinois
CountySt. Clair
Location0.7 Mi E Of Miss. River
CarriesMlk EB To I-55/64
CrossesReloc Il RT 3/rr
Coordinates38.62906, -90.16389

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length983.3 ft (299.7 m)
Max Span152.2 ft (46.4 m)
Deck Width39.0 ft (11.9 m)
Deck Area3566.4 sq m
Main Spans8
Year Built2015

Traffic

Avg Daily Traffic2,650 (2024)
Truck Traffic17%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number082034900000000

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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