US Bridges

I-90 EB over SR 39

Fair

LaPorte County, Indiana · 01.41 E US 35 · Structure no. 047310

Built
1956
69 years old, rebuilt 1987
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
147 ft
3 main spans
Daily traffic
12,615
2014 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 EB over SR 39 is a steel continuous stringer/multi-beam or girder carrying I-90 EB over SR 39 in LaPorte County, Indiana. It was built in 1956 and reconstructed in 1987, so it is 69 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 12,615 vehicles a day, roughly 24% of them trucks, projected to reach 26,276 by 2031. The structure is 147 ft (44.8 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-90 EB
CrossesSR 39
Location01.41 E US 35
RouteInterstate 90
CountyLaPorte County
StateIndiana
Coordinates41.66323, -86.73866
Functional classRural 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.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length147 ft (44.8 m)
Longest span47 ft (14.3 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,615 (2014)
Projected traffic26,276 by 2031
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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-90 EB over SR 39 built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1987.

What condition is I-90 EB over SR 39 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 July 2023.

How much traffic does I-90 EB over SR 39 carry?

About 12,615 vehicles per day (2014 count), of which roughly 24% are trucks.

How long is I-90 EB over SR 39?

The structure is 147 ft (44.8 m) long with a longest span of 47 ft (14.3 m) and a deck 35 ft wide.

Who owns I-90 EB over SR 39?

It is owned by the State Toll Authority.