Castner Falls RD over Bird Creek 038
FairCascade County, Montana · 5M E Cascade · Structure no. L07415004+04001
- Built
- 1938
- 87 years old, rebuilt 1970
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 49 ft
- 2 main spans
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Castner Falls RD over Bird Creek 038 is a steel stringer/multi-beam or girder carrying Castner Falls RD over Bird Creek 038 in Cascade County, Montana. It was built in 1938 and reconstructed in 1970, so it is 87 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 49 ft (14.9 m) long and 26 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 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 Castner Falls RD over Bird Creek 038 built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1970.
What condition is Castner Falls RD over Bird Creek 038 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 January 2025.
How much traffic does Castner Falls RD over Bird Creek 038 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Castner Falls RD over Bird Creek 038?
The structure is 49 ft (14.9 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.
Who owns Castner Falls RD over Bird Creek 038?
It is owned by the County Highway Agency.