Structure 50150 · Marion County, IN

E 56th Street over I-465 Nb/sb 2 Cds

Carries E 56th Street over I-465 Nb/sb 2 Cds, 01.69 N US 36 / SR 67.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT298 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

298 ft end to end, longest span 80 ft: about 4 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.

Built200323 years old
Length297.6 ft90.7 m
Daily traffic23,488counted 2021
Last inspectedApril 2024every 24 months

Location

StateIndiana
CountyMarion
Location01.69 N US 36 / SR 67
CarriesE 56th Street
CrossesI-465 Nb/sb 2 Cds
Coordinates39.85503, -86.04700

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length297.6 ft (90.7 m)
Max Span80.4 ft (24.5 m)
Deck Width108.6 ft (33.1 m)
Deck Area3002.2 sq m
Main Spans4
Year Built2003

Traffic

Avg Daily Traffic23,488 (2021)
Truck Traffic5%
Lanes On Bridge6
Lanes Under Bridge15

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number050150

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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