US Bridges

Portage Avenue over I-90 Eb/Wb

Fair

St. Joseph County, Indiana · 01.88 W SR 933 · Structure no. 047660

Built
1994
31 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
238 ft
2 main spans
Daily traffic
11,688
2014 count
Owner
County
County Highway Agency

About this bridge

Portage Avenue over I-90 Eb/Wb is a steel continuous stringer/multi-beam or girder carrying Portage Avenue over I-90 Eb/Wb in St. Joseph County, Indiana. It was built in 1994, so it is 31 years old, younger 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 11,688 vehicles a day, roughly 7% of them trucks, projected to reach 18,021 by 2031. The structure is 238 ft (72.5 m) long and 68 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesPortage Avenue
CrossesI-90 Eb/Wb
Location01.88 W SR 933
RouteCity Street 0
CountySt. Joseph County
StateIndiana
Coordinates41.72231, -86.28604
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length238 ft (72.5 m)
Longest span119 ft (36.2 m)
Deck width68 ft (20.7 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,688 (2014)
Projected traffic18,021 by 2031
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Portage Avenue over I-90 Eb/Wb built?

It was built in 1994, making it 31 years old in 2025.

What condition is Portage Avenue over I-90 Eb/Wb 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 August 2023.

How much traffic does Portage Avenue over I-90 Eb/Wb carry?

About 11,688 vehicles per day (2014 count), of which roughly 7% are trucks.

How long is Portage Avenue over I-90 Eb/Wb?

The structure is 238 ft (72.5 m) long with a longest span of 119 ft (36.2 m) and a deck 68 ft wide.

Who owns Portage Avenue over I-90 Eb/Wb?

It is owned by the County Highway Agency.