US 2 over Porcupine Creek
FairValley County, Montana · Nashua · Structure no. P00001556+05011
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 193 ft
- 3 main spans
- Daily traffic
- 1,584
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 2 over Porcupine Creek is a prestressed concrete stringer/multi-beam or girder carrying US 2 over Porcupine Creek in Valley County, Montana. It was built in 2006, so it is 19 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 1,584 vehicles a day, roughly 13% of them trucks, projected to reach 1,663 by 2043. The structure is 193 ft (58.7 m) long and 42 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 2 over Porcupine Creek built?
It was built in 2006, making it 19 years old in 2025.
What condition is US 2 over Porcupine Creek 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 November 2024.
How much traffic does US 2 over Porcupine Creek carry?
About 1,584 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is US 2 over Porcupine Creek?
The structure is 193 ft (58.7 m) long with a longest span of 115 ft (35.1 m) and a deck 42 ft wide.
Who owns US 2 over Porcupine Creek?
It is owned by the State Highway Agency.