US Bridges

I-65 NB over Amity Ditch

Fair

Johnson County, Indiana · 02.86 S SR 44 · Structure no. 035770

Built
1970
55 years old, rebuilt 2016
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
28,018
2022 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over Amity Ditch is a concrete continuous slab carrying I-65 NB over Amity Ditch in Johnson County, Indiana. It was built in 1970 and reconstructed in 2016, so it is 55 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 28,018 vehicles a day, roughly 26% of them trucks, projected to reach 28,329 by 2035. The structure is 82 ft (24.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-65 NB
CrossesAmity Ditch
Location02.86 S SR 44
RouteInterstate 65
CountyJohnson County
StateIndiana
Coordinates39.44572, -85.9908
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length82 ft (24.9 m)
Longest span32 ft (9.7 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,018 (2022)
Projected traffic28,329 by 2035
Trucks26%
Lanes on structure2
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 Amity Ditch built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2016.

What condition is I-65 NB over Amity Ditch 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 August 2024.

How much traffic does I-65 NB over Amity Ditch carry?

About 28,018 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is I-65 NB over Amity Ditch?

The structure is 82 ft (24.9 m) long with a longest span of 32 ft (9.7 m) and a deck 42 ft wide.

Who owns I-65 NB over Amity Ditch?

It is owned by the State Highway Agency.