US Bridges

I-65 NB over Prophets Rock Road

Fair

Tippecanoe County, Indiana · 00.23 S SR 43 · Structure no. 037760

Built
1968
57 years old, rebuilt 1993
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
113 ft
3 main spans
Daily traffic
44,595
2021 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over Prophets Rock Road is a steel continuous stringer/multi-beam or girder carrying I-65 NB over Prophets Rock Road in Tippecanoe County, Indiana. It was built in 1968 and reconstructed in 1993, so it is 57 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 44,595 vehicles a day, roughly 49% of them trucks, projected to reach 32,423 by 2034. The structure is 113 ft (34.4 m) long and 67 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-65 NB
CrossesProphets Rock Road
Location00.23 S SR 43
RouteInterstate 65
CountyTippecanoe County
StateIndiana
Coordinates40.49546, -86.86406
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating53.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length113 ft (34.4 m)
Longest span40 ft (12.1 m)
Deck width67 ft (20.5 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,595 (2021)
Projected traffic32,423 by 2034
Trucks49%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-65 NB over Prophets Rock Road built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1993.

What condition is I-65 NB over Prophets Rock Road in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does I-65 NB over Prophets Rock Road carry?

About 44,595 vehicles per day (2021 count), of which roughly 49% are trucks.

How long is I-65 NB over Prophets Rock Road?

The structure is 113 ft (34.4 m) long with a longest span of 40 ft (12.1 m) and a deck 67 ft wide.

Who owns I-65 NB over Prophets Rock Road?

It is owned by the State Highway Agency.