US Bridges

I-65 NB over Iroquois River

Fair

Jasper County, Indiana · 02.88 N SR 16 · Structure no. 038080

Built
1966
59 years old, rebuilt 1997
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
202 ft
3 main spans
Daily traffic
12,481
2004 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over Iroquois River is a steel continuous stringer/multi-beam or girder carrying I-65 NB over Iroquois River in Jasper County, Indiana. It was built in 1966 and reconstructed in 1997, so it is 59 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 12,481 vehicles a day, roughly 37% of them trucks, projected to reach 22,602 by 2030. The structure is 202 ft (61.5 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-65 NB
CrossesIroquois River
Location02.88 N SR 16
RouteInterstate 65
CountyJasper County
StateIndiana
Coordinates40.90505, -87.20927
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length202 ft (61.5 m)
Longest span78 ft (23.9 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,481 (2004)
Projected traffic22,602 by 2030
Trucks37%
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 Iroquois River built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1997.

What condition is I-65 NB over Iroquois 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 May 2023.

How much traffic does I-65 NB over Iroquois River carry?

About 12,481 vehicles per day (2004 count), of which roughly 37% are trucks.

How long is I-65 NB over Iroquois River?

The structure is 202 ft (61.5 m) long with a longest span of 78 ft (23.9 m) and a deck 42 ft wide.

Who owns I-65 NB over Iroquois River?

It is owned by the State Highway Agency.