US Bridges

I-65 NB over West 56th Street

Good

Marion County, Indiana · 00.91 S I-465 · Structure no. 036980

Built
1963
62 years old, rebuilt 2000
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
170 ft
4 main spans
Daily traffic
33,669
2004 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over West 56th Street is a steel continuous stringer/multi-beam or girder carrying I-65 NB over West 56th Street in Marion County, Indiana. It was built in 1963 and reconstructed in 2000, so it is 62 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 33,669 vehicles a day, roughly 13% of them trucks, projected to reach 67,069 by 2035. The structure is 170 ft (51.7 m) long and 65 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-65 NB
CrossesWest 56th Street
Location00.91 S I-465
RouteInterstate 65
StateIndiana
Coordinates39.85299, -86.26489
Functional classUrban 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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length170 ft (51.7 m)
Longest span46 ft (14.1 m)
Deck width65 ft (19.9 m)
Roadway width61 ft (18.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,669 (2004)
Projected traffic67,069 by 2035
Trucks13%
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 West 56th Street built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2000.

What condition is I-65 NB over West 56th Street 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 November 2023.

How much traffic does I-65 NB over West 56th Street carry?

About 33,669 vehicles per day (2004 count), of which roughly 13% are trucks.

How long is I-65 NB over West 56th Street?

The structure is 170 ft (51.7 m) long with a longest span of 46 ft (14.1 m) and a deck 65 ft wide.

Who owns I-65 NB over West 56th Street?

It is owned by the State Highway Agency.