N 300 W over I 84;EIRR;300 W Gs
FairJerome County, Idaho · 1.7 W. Jerome · Structure no. 000000000024835
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected April 2023
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 388 ft
- 3 main spans
- Daily traffic
- 130
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
N 300 W over I 84;EIRR;300 W Gs is a steel continuous girder and floorbeam system carrying N 300 W over I 84;EIRR;300 W Gs in Jerome County, Idaho. It was built in 1971, so it is 54 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 130 vehicles a day, roughly 10% of them trucks, projected to reach 195 by 2042. The structure is 388 ft (118.3 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N 300 W over I 84;EIRR;300 W Gs built?
It was built in 1971, making it 54 years old in 2025.
What condition is N 300 W over I 84;EIRR;300 W 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 April 2023.
How much traffic does N 300 W over I 84;EIRR;300 W Gs carry?
About 130 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is N 300 W over I 84;EIRR;300 W Gs?
The structure is 388 ft (118.3 m) long with a longest span of 125 ft (38.1 m) and a deck 34 ft wide.
Who owns N 300 W over I 84;EIRR;300 W Gs?
It is owned by the State Highway Agency.