US 2 over Porcupine Creek Overflow
FairValley County, Montana · 1M E Nashua · Structure no. P00001557+03001
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 127 ft
- 1 main span
- Daily traffic
- 1,584
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 2 over Porcupine Creek Overflow is a prestressed concrete stringer/multi-beam or girder carrying US 2 over Porcupine Creek Overflow 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 127 ft (38.8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 2 over Porcupine Creek Overflow built?
It was built in 2006, making it 19 years old in 2025.
What condition is US 2 over Porcupine Creek Overflow 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 Overflow carry?
About 1,584 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is US 2 over Porcupine Creek Overflow?
The structure is 127 ft (38.8 m) long with a longest span of 126 ft (38.5 m) and a deck 42 ft wide.
Who owns US 2 over Porcupine Creek Overflow?
It is owned by the State Highway Agency.