US Bridges

I-90 EB over 112th Street

Fair

Lake County, Indiana · 00.73 E US 12 · Structure no. 045900

Built
1956
69 years old, rebuilt 2019
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
119 ft
3 main spans
Daily traffic
18,085
2015 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 EB over 112th Street is a steel stringer/multi-beam or girder carrying I-90 EB over 112th 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 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 18,085 vehicles a day, roughly 13% of them trucks, projected to reach 40,689 by 2031. The structure is 119 ft (36.2 m) long and 65 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-90 EB
Crosses112th Street
Location00.73 E US 12
RouteInterstate 90
CountyLake County
StateIndiana
Coordinates41.69178, -87.52223
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating62.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length119 ft (36.2 m)
Longest span36 ft (10.9 m)
Deck width65 ft (19.8 m)
Roadway width62 ft (19 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,085 (2015)
Projected traffic40,689 by 2031
Trucks13%
Lanes on structure4
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 112th 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 112th Street 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 June 2023.

How much traffic does I-90 EB over 112th Street carry?

About 18,085 vehicles per day (2015 count), of which roughly 13% are trucks.

How long is I-90 EB over 112th Street?

The structure is 119 ft (36.2 m) long with a longest span of 36 ft (10.9 m) and a deck 65 ft wide.

Who owns I-90 EB over 112th Street?

It is owned by the State Toll Authority.