US Bridges

I-90 WB over SR 120

Good

Steuben County, Indiana · 01.67 E I-69 · Structure no. 048790

Built
1956
69 years old, rebuilt 2005
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
158 ft
3 main spans
Daily traffic
9,950
2011 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 WB over SR 120 is a steel continuous stringer/multi-beam or girder carrying I-90 WB over SR 120 in Steuben County, Indiana. It was built in 1956 and reconstructed in 2005, 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 9,950 vehicles a day, roughly 24% of them trucks, projected to reach 25,694 by 2031. The structure is 158 ft (48.1 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-90 WB
CrossesSR 120
Location01.67 E I-69
RouteInterstate 90
StateIndiana
Coordinates41.73026, -84.97072
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
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 rating88.7 US tons
Inventory rating53.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length158 ft (48.1 m)
Longest span55 ft (16.7 m)
Deck width49 ft (14.9 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,950 (2011)
Projected traffic25,694 by 2031
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 WB over SR 120 built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2005.

What condition is I-90 WB over SR 120 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 September 2023.

How much traffic does I-90 WB over SR 120 carry?

About 9,950 vehicles per day (2011 count), of which roughly 24% are trucks.

How long is I-90 WB over SR 120?

The structure is 158 ft (48.1 m) long with a longest span of 55 ft (16.7 m) and a deck 49 ft wide.

Who owns I-90 WB over SR 120?

It is owned by the State Toll Authority.