Structure 82013100000000 · St. Clair County, IL

26th over Nsrr Yard

Carries 26th over Nsrr Yard, 0.2mi SW Of Il 15.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT448 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

448 ft end to end, longest span 165 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 through truss.

Built1936rebuilt 1988
Length448.2 ft136.6 m
Daily traffic6,150counted 2023
Last inspectedAugust 2024every 24 months

Location

StateIllinois
CountySt. Clair
Location0.2mi SW Of Il 15
Carries26th
CrossesNsrr Yard
Coordinates38.60269, -90.13844

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length448.2 ft (136.6 m)
Max Span165.4 ft (50.4 m)
Deck Width48.2 ft (14.7 m)
Deck Area2008.0 sq m
Main Spans2
Year Built1936 (reconstructed 1988)

Traffic

Avg Daily Traffic6,150 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number082013100000000

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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