Structure 44150 · Montgomery County, IN

I-74 EB over SR 47

Carries I-74 EB over SR 47, 02.45 E US 231.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT286 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 6/9

286 ft end to end, longest span 61 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.

Built1964rebuilt 1990
Length285.8 ft87.1 m
Daily traffic17,525counted 2022
Last inspectedSeptember 2024every 24 months

Location

StateIndiana
CountyMontgomery
Location02.45 E US 231
CarriesI-74 EB
CrossesSR 47
Coordinates40.06989, -86.85947

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length285.8 ft (87.1 m)
Max Span61.0 ft (18.6 m)
Deck Width43.6 ft (13.3 m)
Deck Area1158.4 sq m
Main Spans5
Year Built1964 (reconstructed 1990)

Traffic

Avg Daily Traffic17,525 (2022)
Truck Traffic41%
Lanes On Bridge2
Lanes Under Bridge2

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 Number044150

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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