US Bridges

I-65 over Prairie Creek

Fair

Boone County, Indiana · 01.75 S SR 39 · Structure no. 037170

Built
1948
77 years old, rebuilt 1958
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
33 ft
1 main span
Daily traffic
73,132
2021 count
Owner
State
State Highway Agency

About this bridge

I-65 over Prairie Creek is a concrete culvert carrying I-65 over Prairie Creek in Boone County, Indiana. It was built in 1948 and reconstructed in 1958, so it is 77 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 73,132 vehicles a day, roughly 42% of them trucks, projected to reach 122,867 by 2031. The structure is 33 ft (10 m) long and 138 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

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CarriesI-65
CrossesPrairie Creek
Location01.75 S SR 39
RouteInterstate 65
CountyBoone County
StateIndiana
Coordinates40.02186, -86.44279
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length33 ft (10 m)
Longest span30 ft (9.1 m)
Deck width138 ft (42 m)
Roadway width114 ft (34.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic73,132 (2021)
Projected traffic122,867 by 2031
Trucks42%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-65 over Prairie Creek built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1958.

What condition is I-65 over Prairie Creek 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 June 2023.

How much traffic does I-65 over Prairie Creek carry?

About 73,132 vehicles per day (2021 count), of which roughly 42% are trucks.

How long is I-65 over Prairie Creek?

The structure is 33 ft (10 m) long with a longest span of 30 ft (9.1 m) and a deck 138 ft wide.

Who owns I-65 over Prairie Creek?

It is owned by the State Highway Agency.