RD 601 over Quartz Creek
FairLincoln County, Montana · Lower Quartz · Structure no. 011405000000110
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 50
- Owner
- Federal
- U.S. Forest Service
About this bridge
RD 601 over Quartz Creek is a prestressed concrete stringer/multi-beam or girder carrying RD 601 over Quartz Creek in Lincoln County, Montana. It was built in 1976, so it is 49 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 65 ft (19.8 m) long and 17 ft wide.
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 | 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 RD 601 over Quartz Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is RD 601 over Quartz 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 August 2024.
How much traffic does RD 601 over Quartz Creek carry?
About 50 vehicles per day (latest count).
How long is RD 601 over Quartz Creek?
The structure is 65 ft (19.8 m) long with a longest span of 63 ft (19.2 m) and a deck 17 ft wide.
Who owns RD 601 over Quartz Creek?
It is owned by the U.S. Forest Service.