Structure 49790 · Marion County, IN

I-465 WB over Csx Rr

Carries I-465 WB over Csx Rr, 01.53 W I-74.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT157 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

157 ft end to end, longest span 58 ft: about 2 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.

Built1962rebuilt 1999
Length157.5 ft48 m
Daily traffic58,788counted 2021
Last inspectedMay 2024every 24 months

Location

StateIndiana
CountyMarion
Location01.53 W I-74
CarriesI-465 WB
CrossesCsx Rr
Coordinates39.71276, -86.05674

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length157.5 ft (48 m)
Max Span57.7 ft (17.6 m)
Deck Width60.7 ft (18.5 m)
Deck Area888 sq m
Main Spans3
Year Built1962 (reconstructed 1999)

Traffic

Avg Daily Traffic58,788 (2021)
Truck Traffic19%
Lanes On Bridge3

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number049790

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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