SH 51 over Snake River
GoodOwyhee County, Idaho · 15 S. Mountain Home · Structure no. 000000000014561
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected February 2021
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 630 ft
- 4 main spans
- Daily traffic
- 1,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SH 51 over Snake River is a prestressed concrete stringer/multi-beam or girder carrying SH 51 over Snake River in Owyhee County, Idaho. It was built in 2018, so it is 7 years old, younger 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 1,300 vehicles a day, roughly 9% of them trucks, projected to reach 1,950 by 2042. The structure is 630 ft (192 m) long and 36 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 51 over Snake River built?
It was built in 2018, making it 7 years old in 2025.
What condition is SH 51 over Snake River 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 February 2021.
How much traffic does SH 51 over Snake River carry?
About 1,300 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is SH 51 over Snake River?
The structure is 630 ft (192 m) long with a longest span of 155 ft (47.2 m) and a deck 36 ft wide.
Who owns SH 51 over Snake River?
It is owned by the State Highway Agency.