S 449 over Sage Creek
FairHill County, Montana · Gildford · Structure no. S00449000+02001
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 103 ft
- 2 main spans
- Daily traffic
- 260
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 449 over Sage Creek is a prestressed concrete stringer/multi-beam or girder carrying S 449 over Sage Creek in Hill County, Montana. It was built in 1968, so it is 57 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 260 vehicles a day, roughly 1% of them trucks, projected to reach 273 by 2043. The structure is 103 ft (31.4 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 449 over Sage Creek built?
It was built in 1968, making it 57 years old in 2025.
What condition is S 449 over Sage Creek 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 October 2024.
How much traffic does S 449 over Sage Creek carry?
About 260 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is S 449 over Sage Creek?
The structure is 103 ft (31.4 m) long with a longest span of 51 ft (15.5 m) and a deck 34 ft wide.
Who owns S 449 over Sage Creek?
It is owned by the State Highway Agency.