Structure 37760 · Tippecanoe County, IN

I-65 NB over Prophets Rock Road

Carries I-65 NB over Prophets Rock Road, 00.23 S SR 43.

Overall conditionFair

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

How ratings work
Deck9/9 · Excellent
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT113 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 7/9Substructure 6/9 · sets the rating

113 ft end to end, longest span 40 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.

Built1968rebuilt 1993
Length112.9 ft34.4 m
Daily traffic44,595counted 2021
Last inspectedAugust 2023every 24 months

Location

StateIndiana
CountyTippecanoe
Location00.23 S SR 43
CarriesI-65 NB
CrossesProphets Rock Road
Coordinates40.49546, -86.86406

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length112.9 ft (34.4 m)
Max Span39.7 ft (12.1 m)
Deck Width67.3 ft (20.5 m)
Deck Area705.2 sq m
Main Spans3
Year Built1968 (reconstructed 1993)

Traffic

Avg Daily Traffic44,595 (2021)
Truck Traffic49%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number037760

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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