Primrose LN over Jefferson River
FairMadison County, Montana · Silver Star · Structure no. S00422000+01001
- Built
- 2003
- 22 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 225 ft
- 3 main spans
- Daily traffic
- 110
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Primrose LN over Jefferson River is a prestressed concrete stringer/multi-beam or girder carrying Primrose LN over Jefferson River 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 110 vehicles a day, roughly 1% of them trucks, projected to reach 116 by 2043. The structure is 225 ft (68.5 m) long and 30 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Primrose LN over Jefferson River built?
It was built in 2003, making it 22 years old in 2025.
What condition is Primrose LN over Jefferson 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 July 2024.
How much traffic does Primrose LN over Jefferson River carry?
About 110 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Primrose LN over Jefferson River?
The structure is 225 ft (68.5 m) long with a longest span of 74 ft (22.6 m) and a deck 30 ft wide.
Who owns Primrose LN over Jefferson River?
It is owned by the County Highway Agency.