S 47 over Int I 94
FairYellowstone County, Montana · 2M E Custer · Structure no. P00048029+06091
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 299 ft
- 4 main spans
- Daily traffic
- 100
- 2025 count
- Owner
- State
- State Highway Agency
About this bridge
S 47 over Int I 94 is a prestressed concrete stringer/multi-beam or girder carrying S 47 over Int I 94 in Yellowstone County, Montana. It was built in 1972, so it is 53 years old, older than the Montana average of 47 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 299 ft (91.1 m) long and 34 ft wide.
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 47 over Int I 94 built?
It was built in 1972, making it 53 years old in 2025.
What condition is S 47 over Int I 94 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 April 2024.
How much traffic does S 47 over Int I 94 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is S 47 over Int I 94?
The structure is 299 ft (91.1 m) long with a longest span of 107 ft (32.6 m) and a deck 34 ft wide.
Who owns S 47 over Int I 94?
It is owned by the State Highway Agency.