Structure 44220 · Montgomery County, IN

I-74 EB over Walnut Fork

Carries I-74 EB over Walnut Fork, 05.48 E SR 32.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT111 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

111 ft end to end, longest span 34 ft. Lengths and the car 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 1997
Length110.9 ft33.8 m
Daily traffic15,924counted 2022
Last inspectedDecember 2023every 24 months

Location

StateIndiana
CountyMontgomery
Location05.48 E SR 32
CarriesI-74 EB
CrossesWalnut Fork
Coordinates39.99903, -86.72999

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length110.9 ft (33.8 m)
Max Span33.8 ft (10.3 m)
Deck Width43.0 ft (13.1 m)
Deck Area442.8 sq m
Main Spans3
Year Built1964 (reconstructed 1997)

Traffic

Avg Daily Traffic15,924 (2022)
Truck Traffic34%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number044220

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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