Blue Slide RD over Vermillion River
FairSanders County, Montana · 3M E Trout Creek · Structure no. S00472018+09001
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 145 ft
- 7 main spans
- Daily traffic
- 261
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Blue Slide RD over Vermillion River is a wood or timber stringer/multi-beam or girder carrying Blue Slide RD over Vermillion River in Sanders 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 6 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 261 vehicles a day, projected to reach 274 by 2043. The structure is 145 ft (44.2 m) long and 26 ft wide. If it were closed, the detour would be 49.7 mi (80 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 | 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 Blue Slide RD over Vermillion River built?
It was built in 1972, making it 53 years old in 2025.
What condition is Blue Slide RD over Vermillion River 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 June 2024.
How much traffic does Blue Slide RD over Vermillion River carry?
About 261 vehicles per day (2023 count).
How long is Blue Slide RD over Vermillion River?
The structure is 145 ft (44.2 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.
Who owns Blue Slide RD over Vermillion River?
It is owned by the County Highway Agency.