US 20 over Farmers Coop Canal
FairCanyon County, Idaho · 1 NW Caldwell Cl · Structure no. 000000000012215
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 144 ft
- 4 main spans
- Daily traffic
- 11,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 over Farmers Coop Canal is a concrete stringer/multi-beam or girder carrying US 20 over Farmers Coop Canal in Canyon County, Idaho. It was built in 1964, so it is 61 years old, older 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 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 11,000 vehicles a day, roughly 10% of them trucks, projected to reach 16,500 by 2042. The structure is 144 ft (43.9 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 20 over Farmers Coop Canal built?
It was built in 1964, making it 61 years old in 2025.
What condition is US 20 over Farmers Coop 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 January 2025.
How much traffic does US 20 over Farmers Coop Canal carry?
About 11,000 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is US 20 over Farmers Coop Canal?
The structure is 144 ft (43.9 m) long with a longest span of 35 ft (10.7 m) and a deck 42 ft wide.
Who owns US 20 over Farmers Coop Canal?
It is owned by the State Highway Agency.