US Bridges

I-65 SB over Keystone Avenue

Good

Marion County, Indiana · 01.15 N I-465 · Structure no. 036121

Built
2020
5 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
110 ft
1 main span
Daily traffic
50,423
2020 count
Owner
State
State Highway Agency

About this bridge

I-65 SB over Keystone Avenue is a steel stringer/multi-beam or girder carrying I-65 SB over Keystone Avenue in Marion County, Indiana. It was built in 2020, so it is 5 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50,423 vehicles a day, roughly 5% of them trucks, projected to reach 55,969 by 2040. The structure is 110 ft (33.4 m) long and 78 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-65 SB
CrossesKeystone Avenue
Location01.15 N I-465
RouteInterstate 65
CountyMarion County
StateIndiana
Coordinates39.71568, -86.12068
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length110 ft (33.4 m)
Longest span107 ft (32.7 m)
Deck width78 ft (23.9 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,423 (2020)
Projected traffic55,969 by 2040
Trucks5%
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 SB over Keystone Avenue built?

It was built in 2020, making it 5 years old in 2025.

What condition is I-65 SB over Keystone Avenue 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 September 2023.

How much traffic does I-65 SB over Keystone Avenue carry?

About 50,423 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is I-65 SB over Keystone Avenue?

The structure is 110 ft (33.4 m) long with a longest span of 107 ft (32.7 m) and a deck 78 ft wide.

Who owns I-65 SB over Keystone Avenue?

It is owned by the State Highway Agency.