US Bridges

I-90 WB over Wolf Lake

Fair

Lake County, Indiana · 02.06 E US 12 · Structure no. 045950

Built
1956
69 years old, rebuilt 1983
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
108 ft
3 main spans
Daily traffic
18,085
2015 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 WB over Wolf Lake is a steel stringer/multi-beam or girder carrying I-90 WB over Wolf Lake in Lake County, Indiana. It was built in 1956 and reconstructed in 1983, 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 18,085 vehicles a day, roughly 13% of them trucks, projected to reach 40,689 by 2031. The structure is 108 ft (32.9 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-90 WB
CrossesWolf Lake
Location02.06 E US 12
RouteInterstate 90
CountyLake County
StateIndiana
Coordinates41.67263, -87.52148
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.5 US tons
Inventory rating51.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span27 ft (8.2 m)
Deck width49 ft (15 m)
Roadway width46 ft (14.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,085 (2015)
Projected traffic40,689 by 2031
Trucks13%
Lanes on structure3
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 WB over Wolf Lake built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1983.

What condition is I-90 WB over Wolf Lake 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 June 2023.

How much traffic does I-90 WB over Wolf Lake carry?

About 18,085 vehicles per day (2015 count), of which roughly 13% are trucks.

How long is I-90 WB over Wolf Lake?

The structure is 108 ft (32.9 m) long with a longest span of 27 ft (8.2 m) and a deck 49 ft wide.

Who owns I-90 WB over Wolf Lake?

It is owned by the State Toll Authority.