Cottonwood RD over S Cottonwood Creek 123
FairGallatin County, Montana · 3.5M SE Gallatin Gateway · Structure no. L16703003+05001
- Built
- 2014
- 11 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Cottonwood RD over S Cottonwood Creek 123 is a steel stringer/multi-beam or girder carrying Cottonwood RD over S Cottonwood Creek 123 in Gallatin 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 fair condition with a lowest component rating of 5 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 40 ft (12.2 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cottonwood RD over S Cottonwood Creek 123 built?
It was built in 2014, making it 11 years old in 2025.
What condition is Cottonwood RD over S Cottonwood Creek 123 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 September 2024.
How much traffic does Cottonwood RD over S Cottonwood Creek 123 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Cottonwood RD over S Cottonwood Creek 123?
The structure is 40 ft (12.2 m) long with a longest span of 39 ft (12 m) and a deck 24 ft wide.
Who owns Cottonwood RD over S Cottonwood Creek 123?
It is owned by the County Highway Agency.