US Bridges

I-90 EB over Conrail RR

Fair

Porter County, Indiana · 01.24 E I-94 · Structure no. 046740

Built
1956
69 years old, rebuilt 2018
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
214 ft
3 main spans
Daily traffic
17,335
2014 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 EB over Conrail RR is a steel stringer/multi-beam or girder carrying I-90 EB over Conrail RR in Porter County, Indiana. It was built in 1956 and reconstructed in 2018, 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 17,335 vehicles a day, roughly 24% of them trucks, projected to reach 29,977 by 2031. The structure is 214 ft (65.2 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
CrossesConrail RR
Location01.24 E I-94
RouteInterstate 90
CountyPorter County
StateIndiana
Coordinates41.5842, -87.20171
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.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.4 US tons
Inventory rating58.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length214 ft (65.2 m)
Longest span73 ft (22.2 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,335 (2014)
Projected traffic29,977 by 2031
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 Conrail RR built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2018.

What condition is I-90 EB over Conrail RR 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 Conrail RR carry?

About 17,335 vehicles per day (2014 count), of which roughly 24% are trucks.

How long is I-90 EB over Conrail RR?

The structure is 214 ft (65.2 m) long with a longest span of 73 ft (22.2 m) and a deck 35 ft wide.

Who owns I-90 EB over Conrail RR?

It is owned by the State Toll Authority.