Structure 79758 · Hamilton County, IN

US 31 SB over SR 32

Carries US 31 SB over SR 32, 3.65 S SR 38.

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 FT246 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

246 ft end to end: 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.

Built201511 years old
Length245.7 ft74.9 m
Daily traffic20,123counted 2021
Last inspectedSeptember 2024every 24 months

Location

StateIndiana
CountyHamilton
Location3.65 S SR 38
CarriesUS 31 SB
CrossesSR 32
Coordinates40.04261, -86.13602

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length245.7 ft (74.9 m)
Max Span243.8 ft (74.3 m)
Deck Width62.7 ft (19.1 m)
Deck Area1430.6 sq m
Main Spans1
Year Built2015

Traffic

Avg Daily Traffic20,123 (2021)
Truck Traffic10%
Lanes On Bridge3
Lanes Under Bridge5

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 Number079758

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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