US Bridges

I-90 EB over 150th Street

Good

Lake County, Indiana · 00.55 E SR 312 · Structure no. 046170

Built
1956
69 years old, rebuilt 2019
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
174 ft
3 main spans
Daily traffic
18,425
2015 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 EB over 150th Street is a steel stringer/multi-beam or girder carrying I-90 EB over 150th Street in Lake County, Indiana. It was built in 1956 and reconstructed in 2019, 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 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 18,425 vehicles a day, roughly 11% of them trucks, projected to reach 41,903 by 2031. The structure is 174 ft (53 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
Crosses150th Street
Location00.55 E SR 312
RouteInterstate 90
CountyLake County
StateIndiana
Coordinates41.62321, -87.49125
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating62.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length174 ft (53 m)
Longest span56 ft (17 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,425 (2015)
Projected traffic41,903 by 2031
Trucks11%
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 150th Street built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2019.

What condition is I-90 EB over 150th Street 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 June 2023.

How much traffic does I-90 EB over 150th Street carry?

About 18,425 vehicles per day (2015 count), of which roughly 11% are trucks.

How long is I-90 EB over 150th Street?

The structure is 174 ft (53 m) long with a longest span of 56 ft (17 m) and a deck 35 ft wide.

Who owns I-90 EB over 150th Street?

It is owned by the State Toll Authority.