US Bridges

I-65 NB over US 31

Fair

Bartholomew County, Indiana · 04.32 S SR 252 · Structure no. 035600

Built
1961
64 years old, rebuilt 2016
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
234 ft
4 main spans
Daily traffic
25,632
2023 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over US 31 is a steel continuous stringer/multi-beam or girder carrying I-65 NB over US 31 in Bartholomew County, Indiana. It was built in 1961 and reconstructed in 2016, so it is 64 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 25,632 vehicles a day, roughly 35% of them trucks, projected to reach 29,094 by 2043. The structure is 234 ft (71.3 m) long and 55 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-65 NB
CrossesUS 31
Location04.32 S SR 252
RouteInterstate 65
CountyBartholomew County
StateIndiana
Coordinates39.30465, -85.96232
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length234 ft (71.3 m)
Longest span77 ft (23.5 m)
Deck width55 ft (16.9 m)
Roadway width53 ft (16.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,632 (2023)
Projected traffic29,094 by 2043
Trucks35%
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 US 31 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2016.

What condition is I-65 NB over US 31 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 December 2024.

How much traffic does I-65 NB over US 31 carry?

About 25,632 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is I-65 NB over US 31?

The structure is 234 ft (71.3 m) long with a longest span of 77 ft (23.5 m) and a deck 55 ft wide.

Who owns I-65 NB over US 31?

It is owned by the State Highway Agency.