IRR - US 2 over Little Porcupine Creek
FairValley County, Montana · Frazer · Structure no. P00001571+07271
- Built
- 1960
- 65 years old, rebuilt 1998
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 206 ft
- 4 main spans
- Daily traffic
- 1,396
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IRR - US 2 over Little Porcupine Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR - US 2 over Little Porcupine Creek in Valley County, Montana. It was built in 1960 and reconstructed in 1998, so it is 65 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 1,396 vehicles a day, roughly 15% of them trucks, projected to reach 1,466 by 2043. The structure is 206 ft (62.7 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 | 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR - US 2 over Little Porcupine Creek built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1998.
What condition is IRR - US 2 over Little 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 IRR - US 2 over Little Porcupine Creek carry?
About 1,396 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is IRR - US 2 over Little Porcupine Creek?
The structure is 206 ft (62.7 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.
Who owns IRR - US 2 over Little Porcupine Creek?
It is owned by the State Highway Agency.