Structure 82600100000000 · St. Clair County, IL

Fap-799 Mlk Drive over Miss.river Trra Front 8t

Carries Fap-799 Mlk Drive over Miss.river Trra Front 8t, East St. Louis.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT4,010 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

4,010 ft end to end, longest span 963 ft: about 11 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 through truss.

Built1950rebuilt 1988
Length4010.2 ft1222.3 m
Daily traffic7,650counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateIllinois
CountySt. Clair
LocationEast St. Louis
CarriesFap-799 Mlk Drive
CrossesMiss.river Trra Front 8t
Coordinates38.63093, -90.17829

Physical Characteristics

MaterialSteel Continuous
DesignTruss - Thru
Total Length4010.2 ft (1222.3 m)
Max Span962.9 ft (293.5 m)
Deck Width43.3 ft (13.2 m)
Deck Area16134.4 sq m
Main Spans3
Year Built1950 (reconstructed 1988)

Traffic

Avg Daily Traffic7,650 (2024)
Truck Traffic11%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number082600100000000

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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