Structure 50764 · Marion County, IN

Ramp I465nb-i74wb over I-465 Nb/sb

Carries Ramp I465nb-i74wb over I-465 Nb/sb, 02.96 N US 36.

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 FT194 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

194 ft end to end, longest span 97 ft: about 3 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.

Built201214 years old
Length194.2 ft59.2 m
Daily traffic20,683counted 2021
Last inspectedJune 2024every 24 months

Location

StateIndiana
CountyMarion
Location02.96 N US 36
CarriesRamp I465nb-i74wb
CrossesI-465 Nb/sb
Coordinates39.80692, -86.27537

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length194.2 ft (59.2 m)
Max Span96.8 ft (29.5 m)
Deck Width63.0 ft (19.2 m)
Deck Area1136.6 sq m
Main Spans2
Year Built2012

Traffic

Avg Daily Traffic20,683 (2021)
Truck Traffic16%
Lanes On Bridge3
Lanes Under Bridge8

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number050764

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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