SH 75 over Big Wood River
GoodBlaine County, Idaho · 19.9 N. Ketchum · Structure no. 000000000017696
- Built
- 2020
- 5 years old
- Condition
- Good
- inspected July 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 92 ft
- 1 main span
- Daily traffic
- 1,400
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SH 75 over Big Wood River is a prestressed concrete stringer/multi-beam or girder carrying SH 75 over Big Wood River in Blaine County, Idaho. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,400 vehicles a day, roughly 11% of them trucks, projected to reach 2,100 by 2042. The structure is 92 ft (28 m) long and 41 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 75 over Big Wood River built?
It was built in 2020, making it 5 years old in 2025.
What condition is SH 75 over Big Wood 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 July 2022.
How much traffic does SH 75 over Big Wood River carry?
About 1,400 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is SH 75 over Big Wood River?
The structure is 92 ft (28 m) long with a longest span of 89 ft (27.1 m) and a deck 41 ft wide.
Who owns SH 75 over Big Wood River?
It is owned by the State Highway Agency.