US Bridges

SR 912 over NS RR

Fair

Lake County, Indiana · 00.25 W I-80 · Structure no. 033150

Built
1961
64 years old, rebuilt 1997
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
190 ft
3 main spans
Daily traffic
53,949
2021 count
Owner
State
State Highway Agency

About this bridge

SR 912 over NS RR is a steel continuous stringer/multi-beam or girder carrying SR 912 over NS RR in Lake County, Indiana. It was built in 1961 and reconstructed in 1997, so it is 64 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 53,949 vehicles a day, roughly 13% of them trucks, projected to reach 125,103 by 2030. The structure is 190 ft (57.9 m) long and 124 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR 912
CrossesNS RR
Location00.25 W I-80
RouteState Highway 912
CountyLake County
StateIndiana
Coordinates41.57451, -87.4325
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span77 ft (23.6 m)
Deck width124 ft (37.7 m)
Roadway width118 ft (36.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,949 (2021)
Projected traffic125,103 by 2030
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
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 SR 912 over NS RR built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1997.

What condition is SR 912 over NS 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 SR 912 over NS RR carry?

About 53,949 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is SR 912 over NS RR?

The structure is 190 ft (57.9 m) long with a longest span of 77 ft (23.6 m) and a deck 124 ft wide.

Who owns SR 912 over NS RR?

It is owned by the State Highway Agency.