Hammond Valley RD over Big Porcupine CR 034
FairRosebud County, Montana · 8M NW Forsyth · Structure no. L44002001+03001
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 87 ft
- 1 main span
- Daily traffic
- 142
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Hammond Valley RD over Big Porcupine CR 034 is a prestressed concrete tee beam carrying Hammond Valley RD over Big Porcupine CR 034 in Rosebud County, Montana. It was built in 1977, so it is 48 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 142 vehicles a day, roughly 3% of them trucks, projected to reach 150 by 2043. The structure is 87 ft (26.5 m) long and 26 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hammond Valley RD over Big Porcupine CR 034 built?
It was built in 1977, making it 48 years old in 2025.
What condition is Hammond Valley RD over Big Porcupine CR 034 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 September 2024.
How much traffic does Hammond Valley RD over Big Porcupine CR 034 carry?
About 142 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Hammond Valley RD over Big Porcupine CR 034?
The structure is 87 ft (26.5 m) long with a longest span of 85 ft (25.9 m) and a deck 26 ft wide.
Who owns Hammond Valley RD over Big Porcupine CR 034?
It is owned by the County Highway Agency.