County Road 317 over Usbr Main Canal 073
FairDawson County, Montana · 4M NE Intake · Structure no. L11317003+01001
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 77 ft
- 1 main span
- Daily traffic
- 42
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 317 over Usbr Main Canal 073 is a prestressed concrete tee beam carrying County Road 317 over Usbr Main Canal 073 in Dawson 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 42 vehicles a day, roughly 3% of them trucks, projected to reach 44 by 2043. The structure is 77 ft (23.5 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 7 Good | Some minor problems. |
| 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 County Road 317 over Usbr Main Canal 073 built?
It was built in 2001, making it 24 years old in 2025.
What condition is County Road 317 over Usbr Main Canal 073 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 November 2023.
How much traffic does County Road 317 over Usbr Main Canal 073 carry?
About 42 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is County Road 317 over Usbr Main Canal 073?
The structure is 77 ft (23.5 m) long with a longest span of 77 ft (23.5 m) and a deck 28 ft wide.
Who owns County Road 317 over Usbr Main Canal 073?
It is owned by the County Highway Agency.