US Bridges

US 6 over Kankakee River

Good

LaPorte County, Indiana · 01.85 E US 35 · Structure no. 001700

Built
1984
41 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
4,874
2022 count
Owner
State
State Highway Agency

About this bridge

US 6 over Kankakee River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 6 over Kankakee River in LaPorte County, Indiana. It was built in 1984, so it is 41 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 4,874 vehicles a day, roughly 20% of them trucks, projected to reach 6,566 by 2030. The structure is 135 ft (41.1 m) long and 46 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesUS 6
CrossesKankakee River
Location01.85 E US 35
RouteU.S. Route 6
StateIndiana
Coordinates41.47746, -86.60434
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating46.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length135 ft (41.1 m)
Longest span44 ft (13.4 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,874 (2022)
Projected traffic6,566 by 2030
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 6 over Kankakee River built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 6 over Kankakee 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 November 2024.

How much traffic does US 6 over Kankakee River carry?

About 4,874 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is US 6 over Kankakee River?

The structure is 135 ft (41.1 m) long with a longest span of 44 ft (13.4 m) and a deck 46 ft wide.

Who owns US 6 over Kankakee River?

It is owned by the State Highway Agency.