S 565 over Greenfield South Canal
FairTeton County, Montana · 7M N Simms · Structure no. S00565006+06501
- Built
- 1969
- 56 years old, rebuilt 1997
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 55 ft
- 3 main spans
- Daily traffic
- 452
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 565 over Greenfield South Canal is a steel continuous stringer/multi-beam or girder carrying S 565 over Greenfield South Canal in Teton County, Montana. It was built in 1969 and reconstructed in 1997, so it is 56 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.
It carries about 452 vehicles a day, roughly 5% of them trucks, projected to reach 475 by 2043. The structure is 55 ft (16.8 m) long and 24 ft wide. If it were closed, the detour would be 29.8 mi (48 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 565 over Greenfield South Canal built?
It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1997.
What condition is S 565 over Greenfield South Canal 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 2023.
How much traffic does S 565 over Greenfield South Canal carry?
About 452 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S 565 over Greenfield South Canal?
The structure is 55 ft (16.8 m) long with a longest span of 17 ft (5.3 m) and a deck 24 ft wide.
Who owns S 565 over Greenfield South Canal?
It is owned by the State Highway Agency.