US Bridges

I-465 NB over I-69 SR 37

Fair

Marion County, Indiana · 04.56 N US 36 / SR 67 · Structure no. 050240

Built
1968
57 years old, rebuilt 1993
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
2 main spans
Daily traffic
60,828
2021 count
Owner
State
State Highway Agency

About this bridge

I-465 NB over I-69 SR 37 is a steel continuous stringer/multi-beam or girder carrying I-465 NB over I-69 SR 37 in Marion County, Indiana. It was built in 1968 and reconstructed in 1993, so it is 57 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 5 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 60,828 vehicles a day, roughly 9% of them trucks, projected to reach 242,617 by 2030. The structure is 206 ft (62.8 m) long and 63 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-465 NB
CrossesI-69 SR 37
Location04.56 N US 36 / SR 67
RouteInterstate 465
CountyMarion County
StateIndiana
Coordinates39.89501, -86.05408
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length206 ft (62.8 m)
Longest span102 ft (31.2 m)
Deck width63 ft (19.2 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,828 (2021)
Projected traffic242,617 by 2030
Trucks9%
Lanes on structure4
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-465 NB over I-69 SR 37 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1993.

What condition is I-465 NB over I-69 SR 37 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 April 2024.

How much traffic does I-465 NB over I-69 SR 37 carry?

About 60,828 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is I-465 NB over I-69 SR 37?

The structure is 206 ft (62.8 m) long with a longest span of 102 ft (31.2 m) and a deck 63 ft wide.

Who owns I-465 NB over I-69 SR 37?

It is owned by the State Highway Agency.