Cottonwood Cnyn RD over Cottonwood Creek 041
FairGallatin County, Montana · 4M SE Gallatin Gateway · Structure no. L16810000+03001
- Built
- 1986
- 39 years old, rebuilt 2020
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 32 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Cottonwood Cnyn RD over Cottonwood Creek 041 is a steel stringer/multi-beam or girder carrying Cottonwood Cnyn RD over Cottonwood Creek 041 in Gallatin County, Montana. It was built in 1986 and reconstructed in 2020, so it is 39 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cottonwood Cnyn RD over Cottonwood Creek 041 built?
It was built in 1986, making it 39 years old in 2025. It was reconstructed in 2020.
What condition is Cottonwood Cnyn RD over Cottonwood Creek 041 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 June 2023.
How much traffic does Cottonwood Cnyn RD over Cottonwood Creek 041 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Cottonwood Cnyn RD over Cottonwood Creek 041?
The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 24 ft wide.
Who owns Cottonwood Cnyn RD over Cottonwood Creek 041?
It is owned by the County Highway Agency.