North Entrance Roa over Gardner River
FairPark County, Montana · 3.0 Miles South of North · Structure no. 1570025P0000000
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 64 ft
- 1 main span
- Daily traffic
- 2,294
- 2019 count
- Owner
- Federal
- National Park Service
About this bridge
North Entrance Roa over Gardner River is a steel stringer/multi-beam or girder carrying North Entrance Roa over Gardner River in Park County, Montana. It was built in 1958, so it is 67 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 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 2,294 vehicles a day, roughly 1% of them trucks, projected to reach 2,753 by 2039. The structure is 64 ft (19.4 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was North Entrance Roa over Gardner River built?
It was built in 1958, making it 67 years old in 2025.
What condition is North Entrance Roa over Gardner 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 September 2024.
How much traffic does North Entrance Roa over Gardner River carry?
About 2,294 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is North Entrance Roa over Gardner River?
The structure is 64 ft (19.4 m) long with a longest span of 59 ft (18 m) and a deck 35 ft wide.
Who owns North Entrance Roa over Gardner River?
It is owned by the National Park Service.