US 31 Nbsb over Kern Road
FairSt. Joseph County, Indiana · 01.10 S US 20 · Structure no. 079848
- Built
- 2014
- 11 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 432 ft
- 3 main spans
- Daily traffic
- 20,260
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
US 31 Nbsb over Kern Road is a steel continuous stringer/multi-beam or girder carrying US 31 Nbsb over Kern Road in St. Joseph County, Indiana. It was built in 2014, so it is 11 years old, younger 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 20,260 vehicles a day, roughly 10% of them trucks, projected to reach 51,900 by 2035. The structure is 432 ft (131.6 m) long and 134 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 31 Nbsb over Kern Road built?
It was built in 2014, making it 11 years old in 2025.
What condition is US 31 Nbsb over Kern Road 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 July 2023.
How much traffic does US 31 Nbsb over Kern Road carry?
About 20,260 vehicles per day (2012 count), of which roughly 10% are trucks.
How long is US 31 Nbsb over Kern Road?
The structure is 432 ft (131.6 m) long with a longest span of 190 ft (57.9 m) and a deck 134 ft wide.
Who owns US 31 Nbsb over Kern Road?
It is owned by the State Highway Agency.