Napier Ave over US-31
FairBerrien County, Michigan · 9.0 MI N of Old US-31 · Structure no. 000000000012899
- Built
- 2000
- 25 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 342 ft
- 4 main spans
- Daily traffic
- 12,972
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
Napier Ave over US-31 is a prestressed concrete stringer/multi-beam or girder carrying Napier Ave over US-31 in Berrien County, Michigan. It was built in 2000, so it is 25 years old, younger than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 12,972 vehicles a day, roughly 13% of them trucks, projected to reach 13,826 by 2018. The structure is 342 ft (104.2 m) long and 87 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Napier Ave over US-31 built?
It was built in 2000, making it 25 years old in 2025.
What condition is Napier Ave over US-31 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 August 2024.
How much traffic does Napier Ave over US-31 carry?
About 12,972 vehicles per day (2007 count), of which roughly 13% are trucks.
How long is Napier Ave over US-31?
The structure is 342 ft (104.2 m) long with a longest span of 128 ft (39 m) and a deck 87 ft wide.
Who owns Napier Ave over US-31?
It is owned by the State Highway Agency.