Structure 79894 · Hamilton County, IN

US 31 NB over 136th Street

Carries US 31 NB over 136th Street, 4.28 N I-465.

Overall conditionGood

Set by its lowest-rated component: Deck at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT156 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 9/9Substructure 9/9

156 ft end to end, longest span 78 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 tee-beam bridge.

Built201511 years old
Length155.8 ft47.5 m
Daily traffic23,957counted 2021
Last inspectedSeptember 2024every 24 months

Location

StateIndiana
CountyHamilton
Location4.28 N I-465
CarriesUS 31 NB
Crosses136th Street
Coordinates39.98454, -86.14171

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignTee Beam
Total Length155.8 ft (47.5 m)
Max Span78.1 ft (23.8 m)
Deck Width62.7 ft (19.1 m)
Deck Area907.2 sq m
Main Spans2
Year Built2015

Traffic

Avg Daily Traffic23,957 (2021)
Truck Traffic13%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number079894

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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