US-31 SB over CSX RR
FairMuskegon County, Michigan · 1.9 MI N of M-120 · Structure no. 000000000007591
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 138 ft
- 3 main spans
- Daily traffic
- 12,533
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-31 SB over CSX RR is a prestressed concrete stringer/multi-beam or girder carrying US-31 SB over CSX RR in Muskegon County, Michigan. It was built in 1963, so it is 62 years old, older 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 12,533 vehicles a day, roughly 5% of them trucks, projected to reach 19,858 by 2018. The structure is 138 ft (42 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-31 SB over CSX RR built?
It was built in 1963, making it 62 years old in 2025.
What condition is US-31 SB over CSX RR 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 SB over CSX RR carry?
About 12,533 vehicles per day (2007 count), of which roughly 5% are trucks.
How long is US-31 SB over CSX RR?
The structure is 138 ft (42 m) long with a longest span of 46 ft (14 m) and a deck 43 ft wide.
Who owns US-31 SB over CSX RR?
It is owned by the State Highway Agency.