Diamond Match RD over Cedar Creek
GoodMineral County, Montana · 1M SE Superior · Structure no. S00257001+05441
- Built
- 1955
- 70 years old
- Condition
- Good
- inspected May 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 110 ft
- 3 main spans
- Daily traffic
- 743
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Diamond Match RD over Cedar Creek is a concrete continuous tee beam carrying Diamond Match RD over Cedar Creek in Mineral County, Montana. It was built in 1955, so it is 70 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 743 vehicles a day, roughly 8% of them trucks, projected to reach 780 by 2043. The structure is 110 ft (33.5 m) long and 27 ft wide. If it were closed, the detour would be 14.9 mi (24 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 Diamond Match RD over Cedar Creek built?
It was built in 1955, making it 70 years old in 2025.
What condition is Diamond Match RD over Cedar Creek 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 May 2023.
How much traffic does Diamond Match RD over Cedar Creek carry?
About 743 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Diamond Match RD over Cedar Creek?
The structure is 110 ft (33.5 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.
Who owns Diamond Match RD over Cedar Creek?
It is owned by the State Highway Agency.