US Bridges

SR 912 over Little Calumet River

Good

Lake County, Indiana · 00.22 E I-80 · Structure no. 033170

Built
2002
23 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
260 ft
3 main spans
Daily traffic
30,521
2021 count
Owner
State
State Highway Agency

About this bridge

SR 912 over Little Calumet River is a steel continuous stringer/multi-beam or girder carrying SR 912 over Little Calumet River in Lake County, Indiana. It was built in 2002, so it is 23 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 30,521 vehicles a day, roughly 5% of them trucks, projected to reach 72,389 by 2030. The structure is 260 ft (79.2 m) long and 124 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR 912
CrossesLittle Calumet River
Location00.22 E I-80
RouteState Highway 912
StateIndiana
Coordinates41.56677, -87.43244
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating38.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span96 ft (29.3 m)
Deck width124 ft (37.9 m)
Roadway width119 ft (36.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,521 (2021)
Projected traffic72,389 by 2030
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 912 over Little Calumet River built?

It was built in 2002, making it 23 years old in 2025.

What condition is SR 912 over Little Calumet River 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 September 2024.

How much traffic does SR 912 over Little Calumet River carry?

About 30,521 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SR 912 over Little Calumet River?

The structure is 260 ft (79.2 m) long with a longest span of 96 ft (29.3 m) and a deck 124 ft wide.

Who owns SR 912 over Little Calumet River?

It is owned by the State Highway Agency.