US 20 Ebl & Wbl over Twin Groves Canal
FairFremont County, Idaho · 1.2 E. ST Anthony · Structure no. 000000000012620
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected November 2022
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 29 ft
- 1 main span
- Daily traffic
- 9,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 Ebl & Wbl over Twin Groves Canal is a prestressed concrete box beam or girders - multiple carrying US 20 Ebl & Wbl over Twin Groves Canal in Fremont County, Idaho. It was built in 1979, so it is 46 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 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 9,100 vehicles a day, roughly 14% of them trucks, projected to reach 13,650 by 2042. The structure is 29 ft (8.8 m) long and 153 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 20 Ebl & Wbl over Twin Groves Canal built?
It was built in 1979, making it 46 years old in 2025.
What condition is US 20 Ebl & Wbl over Twin Groves 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 November 2022.
How much traffic does US 20 Ebl & Wbl over Twin Groves Canal carry?
About 9,100 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is US 20 Ebl & Wbl over Twin Groves Canal?
The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 153 ft wide.
Who owns US 20 Ebl & Wbl over Twin Groves Canal?
It is owned by the State Highway Agency.