Gateway S RD over Gallatin River 019
FairGallatin County, Montana · Gallatin Gateway · Structure no. L16503006+01001
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 148 ft
- 2 main spans
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Gateway S RD over Gallatin River 019 is a prestressed concrete stringer/multi-beam or girder carrying Gateway S RD over Gallatin River 019 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 148 ft (45 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| 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 Gateway S RD over Gallatin River 019 built?
It was built in 2001, making it 24 years old in 2025.
What condition is Gateway S RD over Gallatin River 019 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 Gateway S RD over Gallatin River 019 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Gateway S RD over Gallatin River 019?
The structure is 148 ft (45 m) long with a longest span of 74 ft (22.5 m) and a deck 26 ft wide.
Who owns Gateway S RD over Gallatin River 019?
It is owned by the County Highway Agency.