Upper Rock CR RD over Stony Creek 011
FairGranite County, Montana · 19M W Phillipsburg · Structure no. L20002013+00001
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected July 2024
- Type
- Girder and Floorbeam System
- Steel
- Length
- 50 ft
- 1 main span
- Daily traffic
- 603
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Upper Rock CR RD over Stony Creek 011 is a steel girder and floorbeam system carrying Upper Rock CR RD over Stony Creek 011 in Granite County, Montana. It was built in 1999, so it is 26 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 603 vehicles a day, roughly 3% of them trucks, projected to reach 645 by 2043. The structure is 50 ft (15.3 m) long and 26 ft wide. If it were closed, the detour would be 70.2 mi (113 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Upper Rock CR RD over Stony Creek 011 built?
It was built in 1999, making it 26 years old in 2025.
What condition is Upper Rock CR RD over Stony Creek 011 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 July 2024.
How much traffic does Upper Rock CR RD over Stony Creek 011 carry?
About 603 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Upper Rock CR RD over Stony Creek 011?
The structure is 50 ft (15.3 m) long with a longest span of 49 ft (14.8 m) and a deck 26 ft wide.
Who owns Upper Rock CR RD over Stony Creek 011?
It is owned by the County Highway Agency.