US Bridges

I-90 Ramp to US-12 over US 12 US 20

Good

Lake County, Indiana · 00.15 E US 12 · Structure no. 046550

Built
2003
22 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
135 ft
1 main span
Daily traffic
1,141
2014 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-90 Ramp to US-12 over US 12 US 20 is a steel stringer/multi-beam or girder carrying I-90 Ramp to US-12 over US 12 US 20 in Lake County, Indiana. It was built in 2003, so it is 22 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,141 vehicles a day, roughly 11% of them trucks, projected to reach 8,092 by 2031. The structure is 135 ft (41.1 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-90 Ramp to US-12
CrossesUS 12 US 20
Location00.15 E US 12
RouteU.S. Route 12
CountyLake County
StateIndiana
Coordinates41.59628, -87.30344
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.8 US tons
Inventory rating45.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span133 ft (40.6 m)
Deck width58 ft (17.8 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,141 (2014)
Projected traffic8,092 by 2031
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a toll road
National Highway SystemNo
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 Ramp to US-12 over US 12 US 20 built?

It was built in 2003, making it 22 years old in 2025.

What condition is I-90 Ramp to US-12 over US 12 US 20 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 Ramp to US-12 over US 12 US 20 carry?

About 1,141 vehicles per day (2014 count), of which roughly 11% are trucks.

How long is I-90 Ramp to US-12 over US 12 US 20?

The structure is 135 ft (41.1 m) long with a longest span of 133 ft (40.6 m) and a deck 58 ft wide.

Who owns I-90 Ramp to US-12 over US 12 US 20?

It is owned by the State Toll Authority.