S Boulder RD over UPR S Boulder River 055
FairMadison County, Montana · 4M S Jefferson Island · Structure no. L29062003+07001
- Built
- 2003
- 22 years old
- Condition
- Fair
- inspected May 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 46 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
S Boulder RD over UPR S Boulder River 055 is a prestressed concrete tee beam carrying S Boulder RD over UPR S Boulder River 055 in Madison County, Montana. It was built in 2003, so it is 22 years old, younger 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 46 ft (14.1 m) long and 26 ft wide. If it were closed, the detour would be 16.8 mi (27 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S Boulder RD over UPR S Boulder River 055 built?
It was built in 2003, making it 22 years old in 2025.
What condition is S Boulder RD over UPR S Boulder River 055 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 May 2024.
How much traffic does S Boulder RD over UPR S Boulder River 055 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is S Boulder RD over UPR S Boulder River 055?
The structure is 46 ft (14.1 m) long with a longest span of 45 ft (13.7 m) and a deck 26 ft wide.
Who owns S Boulder RD over UPR S Boulder River 055?
It is owned by the County Highway Agency.