Swamp Creek RD over Big Timber Creek
GoodSweet Grass County, Montana · 4M N Big Timber · Structure no. 000000201904511
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 65 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Swamp Creek RD over Big Timber Creek is a steel stringer/multi-beam or girder carrying Swamp Creek RD over Big Timber Creek in Sweet Grass County, Montana. It was built in 2019, so it is 6 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 65 ft (19.8 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Swamp Creek RD over Big Timber Creek built?
It was built in 2019, making it 6 years old in 2025.
What condition is Swamp Creek RD over Big Timber Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.
How much traffic does Swamp Creek RD over Big Timber Creek carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Swamp Creek RD over Big Timber Creek?
The structure is 65 ft (19.8 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.
Who owns Swamp Creek RD over Big Timber Creek?
It is owned by the County Highway Agency.