Petty Creek Road over Petty Creek 117
GoodMissoula County, Montana · 9M S Alberton · Structure no. L32100010+00001
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 74 ft
- 1 main span
- Daily traffic
- 455
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Petty Creek Road over Petty Creek 117 is a prestressed concrete stringer/multi-beam or girder carrying Petty Creek Road over Petty Creek 117 in Missoula County, Montana. It was built in 2013, so it is 12 years old, younger 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 455 vehicles a day, roughly 3% of them trucks, projected to reach 487 by 2043. The structure is 74 ft (22.6 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 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 Petty Creek Road over Petty Creek 117 built?
It was built in 2013, making it 12 years old in 2025.
What condition is Petty Creek Road over Petty Creek 117 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 September 2023.
How much traffic does Petty Creek Road over Petty Creek 117 carry?
About 455 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Petty Creek Road over Petty Creek 117?
The structure is 74 ft (22.6 m) long with a longest span of 65 ft (19.9 m) and a deck 33 ft wide.
Who owns Petty Creek Road over Petty Creek 117?
It is owned by the County Highway Agency.