US Bridges

I-65 NB over 49th Avenue

Good

Lake County, Indiana · 04.06 N US 30 · Structure no. 038680

Built
1965
60 years old, rebuilt 2001
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
116 ft
3 main spans
Daily traffic
56,252
2004 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over 49th Avenue is a concrete continuous slab carrying I-65 NB over 49th Avenue 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 56,252 vehicles a day, roughly 5% of them trucks, projected to reach 112,054 by 2030. The structure is 116 ft (35.3 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 NB
Crosses49th Avenue
Location04.06 N US 30
RouteInterstate 65
CountyLake County
StateIndiana
Coordinates41.52929, -87.31398
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.
Substructure8 Very GoodNo problems noted.
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 rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length116 ft (35.3 m)
Longest span46 ft (14 m)
Deck width64 ft (19.4 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,252 (2004)
Projected traffic112,054 by 2030
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 NB over 49th Avenue built?

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

What condition is I-65 NB over 49th 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 March 2023.

How much traffic does I-65 NB over 49th Avenue carry?

About 56,252 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is I-65 NB over 49th Avenue?

The structure is 116 ft (35.3 m) long with a longest span of 46 ft (14 m) and a deck 64 ft wide.

Who owns I-65 NB over 49th Avenue?

It is owned by the State Highway Agency.