US Bridges

I-90 EB over Salt Creek

Fair

Porter County, Indiana · 00.36 W SR 149 · Structure no. 046880

Built
1956
69 years old, rebuilt 2018
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
187 ft
3 main spans
Daily traffic
16,295
2014 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 EB over Salt Creek is a steel stringer/multi-beam or girder carrying I-90 EB over Salt Creek in Porter County, Indiana. It was built in 1956 and reconstructed in 2018, 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 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 16,295 vehicles a day, roughly 24% of them trucks, projected to reach 48,801 by 2031. The structure is 187 ft (56.9 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-90 EB
CrossesSalt Creek
Location00.36 W SR 149
RouteInterstate 90
CountyPorter County
StateIndiana
Coordinates41.57185, -87.13058
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.4 US tons
Inventory rating52.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length187 ft (56.9 m)
Longest span64 ft (19.5 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,295 (2014)
Projected traffic48,801 by 2031
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-90 EB over Salt Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2018.

What condition is I-90 EB over Salt Creek 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 I-90 EB over Salt Creek carry?

About 16,295 vehicles per day (2014 count), of which roughly 24% are trucks.

How long is I-90 EB over Salt Creek?

The structure is 187 ft (56.9 m) long with a longest span of 64 ft (19.5 m) and a deck 41 ft wide.

Who owns I-90 EB over Salt Creek?

It is owned by the State Toll Authority.