US Bridges

I-65 SB over Prophets Rock Road

Good

Tippecanoe County, Indiana · 00.23 S SR 43 · Structure no. 037770

Built
1968
57 years old, rebuilt 1993
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
113 ft
3 main spans
Daily traffic
45,995
2021 count
Owner
State
State Highway Agency

About this bridge

I-65 SB over Prophets Rock Road is a steel continuous stringer/multi-beam or girder carrying I-65 SB 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45,995 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 61 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-65 SB
CrossesProphets Rock Road
Location00.23 S SR 43
RouteInterstate 65
StateIndiana
Coordinates40.49522, -86.86442
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.7 US tons
Inventory rating65.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length113 ft (34.4 m)
Longest span40 ft (12.1 m)
Deck width61 ft (18.5 m)
Roadway width58 ft (17.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,995 (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 SB 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 SB over Prophets Rock Road in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

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

About 45,995 vehicles per day (2021 count), of which roughly 49% are trucks.

How long is I-65 SB 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 61 ft wide.

Who owns I-65 SB over Prophets Rock Road?

It is owned by the State Highway Agency.