Montaqua RD over Rock Creek 047
GoodCarbon County, Montana · Montaqua · Structure no. L05112000+03001
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 133 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Montaqua RD over Rock Creek 047 is a prestressed concrete tee beam carrying Montaqua RD over Rock Creek 047 in Carbon County, Montana. It was built in 2014, so it is 11 years old, younger 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 133 ft (40.4 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Montaqua RD over Rock Creek 047 built?
It was built in 2014, making it 11 years old in 2025.
What condition is Montaqua RD over Rock Creek 047 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 September 2024.
How much traffic does Montaqua RD over Rock Creek 047 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Montaqua RD over Rock Creek 047?
The structure is 133 ft (40.4 m) long with a longest span of 130 ft (39.6 m) and a deck 26 ft wide.
Who owns Montaqua RD over Rock Creek 047?
It is owned by the County Highway Agency.