S 4th RD over Huntley Main Canal 146
GoodYellowstone County, Montana · 1M NE Huntley · Structure no. L56035000+03001
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected November 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 73 ft
- 1 main span
- Daily traffic
- 79
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
S 4th RD over Huntley Main Canal 146 is a prestressed concrete tee beam carrying S 4th RD over Huntley Main Canal 146 in Yellowstone County, Montana. It was built in 1986, so it is 39 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 79 vehicles a day, roughly 3% of them trucks, projected to reach 83 by 2043. The structure is 73 ft (22.3 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 4th RD over Huntley Main Canal 146 built?
It was built in 1986, making it 39 years old in 2025.
What condition is S 4th RD over Huntley Main Canal 146 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.
How much traffic does S 4th RD over Huntley Main Canal 146 carry?
About 79 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is S 4th RD over Huntley Main Canal 146?
The structure is 73 ft (22.3 m) long with a longest span of 70 ft (21.3 m) and a deck 26 ft wide.
Who owns S 4th RD over Huntley Main Canal 146?
It is owned by the County Highway Agency.