US Bridges

Chicago Trail over I-90 Eb/Wb

Good

St. Joseph County, Indiana · 08.40 W US 31 · Structure no. 047540

Built
1956
69 years old, rebuilt 2018
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
276 ft
4 main spans
Daily traffic
626
2014 count
Owner
Toll Authority
State Toll Authority

About this bridge

Chicago Trail over I-90 Eb/Wb is a steel stringer/multi-beam or girder carrying Chicago Trail over I-90 Eb/Wb in St. Joseph 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 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 626 vehicles a day, roughly 10% of them trucks, projected to reach 1,100 by 2031. The structure is 276 ft (84.1 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesChicago Trail
CrossesI-90 Eb/Wb
Location08.40 W US 31
RouteCounty Highway 0
CountySt. Joseph County
StateIndiana
Coordinates41.75392, -86.44843
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length276 ft (84.1 m)
Longest span87 ft (26.4 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic626 (2014)
Projected traffic1,100 by 2031
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 Chicago Trail over I-90 Eb/Wb built?

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

What condition is Chicago Trail over I-90 Eb/Wb 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 July 2023.

How much traffic does Chicago Trail over I-90 Eb/Wb carry?

About 626 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Chicago Trail over I-90 Eb/Wb?

The structure is 276 ft (84.1 m) long with a longest span of 87 ft (26.4 m) and a deck 40 ft wide.

Who owns Chicago Trail over I-90 Eb/Wb?

It is owned by the State Toll Authority.