S 1 over Abandoned Railroad
FairGranite County, Montana · Drummond · Structure no. P00019063+04351
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 165 ft
- 3 main spans
- Daily traffic
- 1,354
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 1 over Abandoned Railroad is a prestressed concrete stringer/multi-beam or girder carrying S 1 over Abandoned Railroad in Granite County, Montana. It was built in 1966, so it is 59 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 1,354 vehicles a day, roughly 2% of them trucks, projected to reach 1,456 by 2043. The structure is 165 ft (50.3 m) long and 31 ft wide. If it were closed, the detour would be 29.8 mi (48 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 1 over Abandoned Railroad built?
It was built in 1966, making it 59 years old in 2025.
What condition is S 1 over Abandoned Railroad 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 2024.
How much traffic does S 1 over Abandoned Railroad carry?
About 1,354 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is S 1 over Abandoned Railroad?
The structure is 165 ft (50.3 m) long with a longest span of 62 ft (18.9 m) and a deck 31 ft wide.
Who owns S 1 over Abandoned Railroad?
It is owned by the State Highway Agency.