W 4000 N over ST Anthony Canal
FairMadison County, Idaho · 0.58 SW Plano · Structure no. 000000000036200
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected March 2024
- Type
- Frame
- Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 10
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
W 4000 N over ST Anthony Canal is a concrete frame carrying W 4000 N over ST Anthony Canal in Madison County, Idaho. It was built in 1992, so it is 33 years old, younger than the Idaho average of 45.3 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 10 vehicles a day, roughly 1% of them trucks, projected to reach 15 by 2040. The structure is 23 ft (7 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was W 4000 N over ST Anthony Canal built?
It was built in 1992, making it 33 years old in 2025.
What condition is W 4000 N over ST Anthony 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 March 2024.
How much traffic does W 4000 N over ST Anthony Canal carry?
About 10 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is W 4000 N over ST Anthony Canal?
The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 26 ft wide.
Who owns W 4000 N over ST Anthony Canal?
It is owned by the County Highway Agency.