US Bridges

SR 104 over Kankakee River

Poor

LaPorte County, Indiana · 03.78 W US 6 · Structure no. 025270

Built
1984
41 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
138 ft
3 main spans
Daily traffic
1,155
2020 count
Owner
State
State Highway Agency

About this bridge

SR 104 over Kankakee River is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 104 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,155 vehicles a day, roughly 15% of them trucks, projected to reach 2,379 by 2030. The structure is 138 ft (42 m) long and 46 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesSR 104
CrossesKankakee River
Location03.78 W US 6
RouteState Highway 104
CountyLaPorte County
StateIndiana
Coordinates41.51029, -86.54147
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating7.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length138 ft (42 m)
Longest span45 ft (13.7 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,155 (2020)
Projected traffic2,379 by 2030
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 104 over Kankakee River built?

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

What condition is SR 104 over Kankakee River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does SR 104 over Kankakee River carry?

About 1,155 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is SR 104 over Kankakee River?

The structure is 138 ft (42 m) long with a longest span of 45 ft (13.7 m) and a deck 46 ft wide.

Who owns SR 104 over Kankakee River?

It is owned by the State Highway Agency.