Amsterdam RD over Gallatin River
FairPosted for loadGallatin County, Montana · 3M SW Belgrade · Structure no. S00347003+04001
- Built
- 1951
- 74 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 181 ft
- 3 main spans
- Daily traffic
- 1,889
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Amsterdam RD over Gallatin River is a steel continuous stringer/multi-beam or girder carrying Amsterdam RD over Gallatin River in Gallatin County, Montana. It was built in 1951, so it is 74 years old, older 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. Its operating status is: posted for load restriction.
It carries about 1,889 vehicles a day, roughly 2% of them trucks, projected to reach 1,983 by 2043. The structure is 181 ft (55.2 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Amsterdam RD over Gallatin River built?
It was built in 1951, making it 74 years old in 2025.
What condition is Amsterdam RD over Gallatin River 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 October 2024.
How much traffic does Amsterdam RD over Gallatin River carry?
About 1,889 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Amsterdam RD over Gallatin River?
The structure is 181 ft (55.2 m) long with a longest span of 71 ft (21.6 m) and a deck 27 ft wide.
Who owns Amsterdam RD over Gallatin River?
It is owned by the County Highway Agency.