I 84B over Phyllis Canal
GoodCanyon County, Idaho · In Nampa · Structure no. 000000000013805
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected January 2025
- Type
- Frame
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 23,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 84B over Phyllis Canal is a concrete frame carrying I 84B over Phyllis Canal in Canyon County, Idaho. It was built in 1970, so it is 55 years old, older than the Idaho average of 45.3 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 23,000 vehicles a day, roughly 3% of them trucks, projected to reach 34,500 by 2042. The structure is 26 ft (7.9 m) long and 94 ft wide. If it were closed, the detour would be 1.2 mi (2 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 I 84B over Phyllis Canal built?
It was built in 1970, making it 55 years old in 2025.
What condition is I 84B over Phyllis Canal 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 January 2025.
How much traffic does I 84B over Phyllis Canal carry?
About 23,000 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is I 84B over Phyllis Canal?
The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 94 ft wide.
Who owns I 84B over Phyllis Canal?
It is owned by the State Highway Agency.