US Bridges

US 12SR 912 over I-90 Eb/Wb Nictd RR

Fair

Lake County, Indiana · 01.27 E SR 312 · Structure no. 033100

Built
1956
69 years old, rebuilt 1999
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
322 ft
5 main spans
Daily traffic
23,796
2021 count
Owner
Toll Authority
State Toll Authority

About this bridge

US 12SR 912 over I-90 Eb/Wb Nictd RR is a steel continuous stringer/multi-beam or girder carrying US 12SR 912 over I-90 Eb/Wb Nictd RR in Lake County, Indiana. It was built in 1956 and reconstructed in 1999, 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 23,796 vehicles a day, roughly 11% of them trucks, projected to reach 115,443 by 2030. The structure is 322 ft (98.1 m) long and 81 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesUS 12SR 912
CrossesI-90 Eb/Wb Nictd RR
Location01.27 E SR 312
RouteU.S. Route 12
StateIndiana
Coordinates41.61031, -87.43259
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
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 rating67 US tons
Inventory rating40.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length322 ft (98.1 m)
Longest span114 ft (34.8 m)
Deck width81 ft (24.7 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,796 (2021)
Projected traffic115,443 by 2030
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Highway Agency
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 US 12SR 912 over I-90 Eb/Wb Nictd RR built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1999.

What condition is US 12SR 912 over I-90 Eb/Wb Nictd RR 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 September 2024.

How much traffic does US 12SR 912 over I-90 Eb/Wb Nictd RR carry?

About 23,796 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is US 12SR 912 over I-90 Eb/Wb Nictd RR?

The structure is 322 ft (98.1 m) long with a longest span of 114 ft (34.8 m) and a deck 81 ft wide.

Who owns US 12SR 912 over I-90 Eb/Wb Nictd RR?

It is owned by the State Toll Authority and maintained by the State Highway Agency.