Kelly Canyon RD over Rocky Creek 042
FairGallatin County, Montana · 2M E Bozeman · Structure no. L16009005+03001
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 59 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Kelly Canyon RD over Rocky Creek 042 is a prestressed concrete tee beam carrying Kelly Canyon RD over Rocky Creek 042 in Gallatin County, Montana. It was built in 2001, so it is 24 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 59 ft (18 m) long and 30 ft wide. If it were closed, the detour would be 18 mi (29 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 | 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 Kelly Canyon RD over Rocky Creek 042 built?
It was built in 2001, making it 24 years old in 2025.
What condition is Kelly Canyon RD over Rocky Creek 042 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 November 2023.
How much traffic does Kelly Canyon RD over Rocky Creek 042 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Kelly Canyon RD over Rocky Creek 042?
The structure is 59 ft (18 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.
Who owns Kelly Canyon RD over Rocky Creek 042?
It is owned by the County Highway Agency.