US 20 Eb-Wb over SH 48;RIGBY Gs
FairJefferson County, Idaho · In Rigby · Structure no. 000000000012440
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 147 ft
- 3 main spans
- Daily traffic
- 28,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 Eb-Wb over SH 48;RIGBY Gs is a steel continuous stringer/multi-beam or girder carrying US 20 Eb-Wb over SH 48;RIGBY Gs in Jefferson County, Idaho. It was built in 1976, so it is 49 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 28,500 vehicles a day, roughly 9% of them trucks, projected to reach 42,750 by 2042. The structure is 147 ft (44.8 m) long and 90 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 20 Eb-Wb over SH 48;RIGBY Gs built?
It was built in 1976, making it 49 years old in 2025.
What condition is US 20 Eb-Wb over SH 48;RIGBY Gs 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 May 2024.
How much traffic does US 20 Eb-Wb over SH 48;RIGBY Gs carry?
About 28,500 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is US 20 Eb-Wb over SH 48;RIGBY Gs?
The structure is 147 ft (44.8 m) long with a longest span of 105 ft (32 m) and a deck 90 ft wide.
Who owns US 20 Eb-Wb over SH 48;RIGBY Gs?
It is owned by the State Highway Agency.