US Bridges

US 20 over I-90 Eb/Wb

Good

LaPorte County, Indiana · 03.60 E SR 39 · Structure no. 005305

Built
1956
69 years old, rebuilt 1989
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
5 main spans
Daily traffic
14,543
2021 count
Owner
Toll Authority
State Toll Authority

About this bridge

US 20 over I-90 Eb/Wb is a steel continuous stringer/multi-beam or girder carrying US 20 over I-90 Eb/Wb in LaPorte County, Indiana. It was built in 1956 and reconstructed in 1989, 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 14,543 vehicles a day, roughly 28% of them trucks, projected to reach 18,868 by 2029. The structure is 206 ft (62.7 m) long and 88 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 20
CrossesI-90 Eb/Wb
Location03.60 E SR 39
RouteU.S. Route 20
StateIndiana
Coordinates41.67763, -86.66841
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length206 ft (62.7 m)
Longest span45 ft (13.7 m)
Deck width88 ft (26.9 m)
Roadway width85 ft (25.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,543 (2021)
Projected traffic18,868 by 2029
Trucks28%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Highway Agency
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 US 20 over I-90 Eb/Wb built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1989.

What condition is US 20 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 2024.

How much traffic does US 20 over I-90 Eb/Wb carry?

About 14,543 vehicles per day (2021 count), of which roughly 28% are trucks.

How long is US 20 over I-90 Eb/Wb?

The structure is 206 ft (62.7 m) long with a longest span of 45 ft (13.7 m) and a deck 88 ft wide.

Who owns US 20 over I-90 Eb/Wb?

It is owned by the State Toll Authority and maintained by the State Highway Agency.