US Bridges

I-65 SB over NS RR

Good

Lake County, Indiana · 04.83 N US 30 · Structure no. 038710

Built
1965
60 years old, rebuilt 2001
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
159 ft
3 main spans
Daily traffic
54,358
2022 count
Owner
State
State Highway Agency

About this bridge

I-65 SB over NS RR is a steel continuous stringer/multi-beam or girder carrying I-65 SB over NS RR in Lake County, Indiana. It was built in 1965 and reconstructed in 2001, so it is 60 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 54,358 vehicles a day, roughly 18% of them trucks, projected to reach 112,054 by 2030. The structure is 159 ft (48.4 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-65 SB
CrossesNS RR
Location04.83 N US 30
RouteInterstate 65
CountyLake County
StateIndiana
Coordinates41.5401, -87.31099
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating59.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length159 ft (48.4 m)
Longest span60 ft (18.2 m)
Deck width64 ft (19.4 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,358 (2022)
Projected traffic112,054 by 2030
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 NS RR built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2001.

What condition is I-65 SB over NS RR 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 March 2023.

How much traffic does I-65 SB over NS RR carry?

About 54,358 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is I-65 SB over NS RR?

The structure is 159 ft (48.4 m) long with a longest span of 60 ft (18.2 m) and a deck 64 ft wide.

Who owns I-65 SB over NS RR?

It is owned by the State Highway Agency.