US Bridges

I-65 NB over Driftwood River

Fair

Bartholomew County, Indiana · 00.32 N SR 46 · Structure no. 035540

Built
1961
64 years old, rebuilt 2010
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,019 ft
15 main spans
Daily traffic
21,514
2022 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over Driftwood River is a steel continuous stringer/multi-beam or girder carrying I-65 NB over Driftwood River in Bartholomew County, Indiana. It was built in 1961 and reconstructed in 2010, 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 21,514 vehicles a day, roughly 5% of them trucks, projected to reach 43,851 by 2031. The structure is 1,019 ft (310.5 m) long and 55 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-65 NB
CrossesDriftwood River
Location00.32 N SR 46
RouteInterstate 65
StateIndiana
Coordinates39.20512, -85.95695
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating28.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20
Structure length1,019 ft (310.5 m)
Longest span75 ft (22.8 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,514 (2022)
Projected traffic43,851 by 2031
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-65 NB over Driftwood River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2010.

What condition is I-65 NB over Driftwood River 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 Driftwood River carry?

About 21,514 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is I-65 NB over Driftwood River?

The structure is 1,019 ft (310.5 m) long with a longest span of 75 ft (22.8 m) and a deck 55 ft wide.

Who owns I-65 NB over Driftwood River?

It is owned by the State Highway Agency.