N 3470 E RD over Dry Bed Canal;midway Br.
GoodJefferson County, Idaho · 1.0 S. 0.2 W. Menan · Structure no. 000000000032600
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 78 ft
- 1 main span
- Daily traffic
- 350
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
N 3470 E RD over Dry Bed Canal;midway Br. is a prestressed concrete stringer/multi-beam or girder carrying N 3470 E RD over Dry Bed Canal;midway Br. in Jefferson County, Idaho. It was built in 1977, so it is 48 years old, older than the Idaho average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 350 vehicles a day, roughly 10% of them trucks, projected to reach 525 by 2039. The structure is 78 ft (23.8 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N 3470 E RD over Dry Bed Canal;midway Br. built?
It was built in 1977, making it 48 years old in 2025.
What condition is N 3470 E RD over Dry Bed Canal;midway Br. in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does N 3470 E RD over Dry Bed Canal;midway Br. carry?
About 350 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is N 3470 E RD over Dry Bed Canal;midway Br.?
The structure is 78 ft (23.8 m) long with a longest span of 76 ft (23.2 m) and a deck 32 ft wide.
Who owns N 3470 E RD over Dry Bed Canal;midway Br.?
It is owned by the County Highway Agency.