US Bridges

I-65 NB over US 231

Good

White County, Indiana · 05.42 N SR 18 · Structure no. 037890

Built
1968
57 years old, rebuilt 1998
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
179 ft
2 main spans
Daily traffic
1,520
2021 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over US 231 is a steel continuous stringer/multi-beam or girder carrying I-65 NB over US 231 in White County, Indiana. It was built in 1968 and reconstructed in 1998, 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 1,520 vehicles a day, roughly 12% of them trucks, projected to reach 13,401 by 2034. The structure is 179 ft (54.5 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-65 NB
CrossesUS 231
Location05.42 N SR 18
RouteInterstate 65
CountyWhite County
StateIndiana
Coordinates40.66769, -87.04074
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
Deck7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length179 ft (54.5 m)
Longest span88 ft (26.9 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,520 (2021)
Projected traffic13,401 by 2034
Trucks12%
Lanes on structure2
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 US 231 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1998.

What condition is I-65 NB over US 231 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 NB over US 231 carry?

About 1,520 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is I-65 NB over US 231?

The structure is 179 ft (54.5 m) long with a longest span of 88 ft (26.9 m) and a deck 43 ft wide.

Who owns I-65 NB over US 231?

It is owned by the State Highway Agency.