US Bridges

I-90 WB over Clay Street

Good

Lake County, Indiana · 02.00 W SR 51 · Structure no. 046630

Built
2004
21 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
64 ft
1 main span
Daily traffic
19,440
2015 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 WB over Clay Street is a steel stringer/multi-beam or girder carrying I-90 WB over Clay Street in Lake County, Indiana. It was built in 2004, so it is 21 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 19,440 vehicles a day, roughly 20% of them trucks, projected to reach 55,964 by 2031. The structure is 64 ft (19.5 m) long and 67 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-90 WB
CrossesClay Street
Location02.00 W SR 51
RouteInterstate 90
StateIndiana
Coordinates41.58896, -87.27874
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.1 US tons
Inventory rating66.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span62 ft (18.8 m)
Deck width67 ft (20.5 m)
Roadway width64 ft (19.6 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 Clay Street built?

It was built in 2004, making it 21 years old in 2025.

What condition is I-90 WB over Clay Street 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 I-90 WB over Clay Street carry?

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

How long is I-90 WB over Clay Street?

The structure is 64 ft (19.5 m) long with a longest span of 62 ft (18.8 m) and a deck 67 ft wide.

Who owns I-90 WB over Clay Street?

It is owned by the State Toll Authority.