US Bridges

I-90 WB over SR 51/RIPLEY ST

Fair

Lake County, Indiana · 04.06 E US 12 · Structure no. 046680

Built
1956
69 years old, rebuilt 1984
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
171 ft
4 main spans
Daily traffic
19,440
2015 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 WB over SR 51/RIPLEY ST is a steel stringer/multi-beam or girder carrying I-90 WB over SR 51/RIPLEY ST in Lake County, Indiana. It was built in 1956 and reconstructed in 1984, 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 19,440 vehicles a day, roughly 20% of them trucks, projected to reach 55,964 by 2031. The structure is 171 ft (52.1 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-90 WB
CrossesSR 51/RIPLEY ST
Location04.06 E US 12
RouteInterstate 90
CountyLake County
StateIndiana
Coordinates41.59315, -87.24052
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span43 ft (13.1 m)
Deck width52 ft (15.8 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,440 (2015)
Projected traffic55,964 by 2031
Trucks20%
Lanes on structure3
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 51/RIPLEY ST built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1984.

What condition is I-90 WB over SR 51/RIPLEY ST 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 WB over SR 51/RIPLEY ST carry?

About 19,440 vehicles per day (2015 count), of which roughly 20% are trucks.

How long is I-90 WB over SR 51/RIPLEY ST?

The structure is 171 ft (52.1 m) long with a longest span of 43 ft (13.1 m) and a deck 52 ft wide.

Who owns I-90 WB over SR 51/RIPLEY ST?

It is owned by the State Toll Authority.