US Bridges

SR 912 over Ihb RR

Fair

Lake County, Indiana · 00.19 E US 20 · Structure no. 033120

Built
1960
65 years old, rebuilt 1998
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
714 ft
11 main spans
Daily traffic
20,546
2021 count
Owner
State
State Highway Agency

About this bridge

SR 912 over Ihb RR is a steel continuous stringer/multi-beam or girder carrying SR 912 over Ihb RR in Lake County, Indiana. It was built in 1960 and reconstructed in 1998, so it is 65 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 5 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 20,546 vehicles a day, roughly 8% of them trucks, projected to reach 124,518 by 2030. The structure is 714 ft (217.6 m) long and 107 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 912
CrossesIhb RR
Location00.19 E US 20
RouteState Highway 912
CountyLake County
StateIndiana
Coordinates41.60063, -87.43271
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length714 ft (217.6 m)
Longest span96 ft (29.2 m)
Deck width107 ft (32.6 m)
Roadway width101 ft (30.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,546 (2021)
Projected traffic124,518 by 2030
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 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 Ihb RR built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1998.

What condition is SR 912 over Ihb 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 Ihb RR carry?

About 20,546 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is SR 912 over Ihb RR?

The structure is 714 ft (217.6 m) long with a longest span of 96 ft (29.2 m) and a deck 107 ft wide.

Who owns SR 912 over Ihb RR?

It is owned by the State Highway Agency.