US Bridges

I-65 NB over Turkey Creek

Fair

Lake County, Indiana · 02.70 N US 30 · Structure no. 038620

Built
1965
60 years old, rebuilt 2020
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
96 ft
3 main spans
Daily traffic
53,256
2022 count
Owner
State
State Highway Agency

About this bridge

I-65 NB over Turkey Creek is a concrete continuous slab carrying I-65 NB over Turkey Creek in Lake County, Indiana. It was built in 1965 and reconstructed in 2020, 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 fair condition with a lowest component rating of 6 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 53,256 vehicles a day, roughly 18% of them trucks, projected to reach 112,054 by 2030. The structure is 96 ft (29.2 m) long and 109 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-65 NB
CrossesTurkey Creek
Location02.70 N US 30
RouteInterstate 65
CountyLake County
StateIndiana
Coordinates41.51003, -87.31964
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length96 ft (29.2 m)
Longest span37 ft (11.4 m)
Deck width109 ft (33.1 m)
Roadway width106 ft (32.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,256 (2022)
Projected traffic112,054 by 2030
Trucks18%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-65 NB over Turkey Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2020.

What condition is I-65 NB over Turkey Creek 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 March 2023.

How much traffic does I-65 NB over Turkey Creek carry?

About 53,256 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is I-65 NB over Turkey Creek?

The structure is 96 ft (29.2 m) long with a longest span of 37 ft (11.4 m) and a deck 109 ft wide.

Who owns I-65 NB over Turkey Creek?

It is owned by the State Highway Agency.