US Bridges

Primrose Road over I-90 Eb/Wb

Good

St. Joseph County, Indiana · 01.88 W US 31 · Structure no. 047600

Built
1956
69 years old, rebuilt 2001
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
214 ft
4 main spans
Daily traffic
1,046
2014 count
Owner
Toll Authority
State Toll Authority

About this bridge

Primrose Road over I-90 Eb/Wb is a steel stringer/multi-beam or girder carrying Primrose Road over I-90 Eb/Wb in St. Joseph County, Indiana. It was built in 1956 and reconstructed in 2001, 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 1,046 vehicles a day, roughly 10% of them trucks, projected to reach 1,087 by 2031. The structure is 214 ft (65.2 m) long and 30 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesPrimrose Road
CrossesI-90 Eb/Wb
Location01.88 W US 31
RouteCounty Highway 0
StateIndiana
Coordinates41.73053, -86.37066
Functional classUrban 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.6 US tons
Inventory rating41.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length214 ft (65.2 m)
Longest span65 ft (19.9 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,046 (2014)
Projected traffic1,087 by 2031
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 Primrose Road over I-90 Eb/Wb built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2001.

What condition is Primrose Road 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 Primrose Road over I-90 Eb/Wb carry?

About 1,046 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Primrose Road over I-90 Eb/Wb?

The structure is 214 ft (65.2 m) long with a longest span of 65 ft (19.9 m) and a deck 30 ft wide.

Who owns Primrose Road over I-90 Eb/Wb?

It is owned by the State Toll Authority.