Susie Creek RD over Boulder River 045
FairSweet Grass County, Montana · 1M S Mcleod · Structure no. L49126000+02001
- Built
- 1960
- 65 years old, rebuilt 1997
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 118 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Susie Creek RD over Boulder River 045 is a wood or timber stringer/multi-beam or girder carrying Susie Creek RD over Boulder River 045 in Sweet Grass County, Montana. It was built in 1960 and reconstructed in 1997, so it is 65 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 118 ft (36 m) long and 16 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 | 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Susie Creek RD over Boulder River 045 built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1997.
What condition is Susie Creek RD over Boulder River 045 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 August 2024.
How much traffic does Susie Creek RD over Boulder River 045 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Susie Creek RD over Boulder River 045?
The structure is 118 ft (36 m) long with a longest span of 59 ft (18 m) and a deck 16 ft wide.
Who owns Susie Creek RD over Boulder River 045?
It is owned by the County Highway Agency.