Hyalite Road over Hyalite Creek
GoodGallatin County, Montana · Hyalite Canyon · Structure no. 011106000000030
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected September 2021
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 82 ft
- 1 main span
- Daily traffic
- 99
- Owner
- Federal
- U.S. Forest Service
About this bridge
Hyalite Road over Hyalite Creek is a prestressed concrete stringer/multi-beam or girder carrying Hyalite Road over Hyalite Creek in Gallatin County, Montana. It was built in 1988, so it is 37 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 99 vehicles a day, projected to reach 148 by 2045. The structure is 82 ft (25 m) long and 30 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hyalite Road over Hyalite Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is Hyalite Road over Hyalite Creek 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 2021.
How much traffic does Hyalite Road over Hyalite Creek carry?
About 99 vehicles per day (latest count).
How long is Hyalite Road over Hyalite Creek?
The structure is 82 ft (25 m) long with a longest span of 80 ft (24.4 m) and a deck 30 ft wide.
Who owns Hyalite Road over Hyalite Creek?
It is owned by the U.S. Forest Service.