US Bridges

Johnson Road over I-90 Eb/Wb

Fair

LaPorte County, Indiana · 01.19 W US 35 · Structure no. 047260

Built
1956
69 years old, rebuilt 1995
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
270 ft
5 main spans
Daily traffic
7,706
2014 count
Owner
Toll Authority
State Toll Authority

About this bridge

Johnson Road over I-90 Eb/Wb is a steel stringer/multi-beam or girder carrying Johnson Road over I-90 Eb/Wb in LaPorte County, Indiana. It was built in 1956 and reconstructed in 1995, 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 fair condition with a lowest component rating of 5 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 7,706 vehicles a day, roughly 10% of them trucks, projected to reach 21,036 by 2031. The structure is 270 ft (82.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesJohnson Road
CrossesI-90 Eb/Wb
Location01.19 W US 35
RouteCounty Highway 0
CountyLaPorte County
StateIndiana
Coordinates41.64222, -86.77886
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.3 US tons
Inventory rating45.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length270 ft (82.2 m)
Longest span62 ft (18.8 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,706 (2014)
Projected traffic21,036 by 2031
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 Johnson Road over I-90 Eb/Wb built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1995.

What condition is Johnson Road 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 July 2023.

How much traffic does Johnson Road over I-90 Eb/Wb carry?

About 7,706 vehicles per day (2014 count), of which roughly 10% are trucks.

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

The structure is 270 ft (82.2 m) long with a longest span of 62 ft (18.8 m) and a deck 30 ft wide.

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

It is owned by the State Toll Authority.