Upper Rock CR RD over Rock Creek 010
GoodGranite County, Montana · 20M W Phillipsburg · Structure no. L20002014+03001
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 90 ft
- 1 main span
- Daily traffic
- 603
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Upper Rock CR RD over Rock Creek 010 is a prestressed concrete tee beam carrying Upper Rock CR RD over Rock Creek 010 in Granite 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 603 vehicles a day, roughly 3% of them trucks, projected to reach 645 by 2043. The structure is 90 ft (27.4 m) long and 20 ft wide. If it were closed, the detour would be 70.2 mi (113 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Upper Rock CR RD over Rock Creek 010 built?
It was built in 1976, making it 49 years old in 2025.
What condition is Upper Rock CR RD over Rock Creek 010 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.
How much traffic does Upper Rock CR RD over Rock Creek 010 carry?
About 603 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Upper Rock CR RD over Rock Creek 010?
The structure is 90 ft (27.4 m) long with a longest span of 89 ft (27.1 m) and a deck 20 ft wide.
Who owns Upper Rock CR RD over Rock Creek 010?
It is owned by the County Highway Agency.