Silverberry RD over Big Gulch Wash #4
GoodAda County, Idaho · Spring Valley Dev · Structure no. 000000000034370
- Built
- 2024
- 1 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 32 ft
- 1 main span
- Daily traffic
- 1,000
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Silverberry RD over Big Gulch Wash #4 is a steel stringer/multi-beam or girder carrying Silverberry RD over Big Gulch Wash #4 in Ada County, Idaho. It was built in 2024, so it is 1 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,100 by 2042. The structure is 32 ft (9.8 m) long and 51 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 | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Silverberry RD over Big Gulch Wash #4 built?
It was built in 2024, making it 1 years old in 2025.
What condition is Silverberry RD over Big Gulch Wash #4 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 November 2024.
How much traffic does Silverberry RD over Big Gulch Wash #4 carry?
About 1,000 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Silverberry RD over Big Gulch Wash #4?
The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 51 ft wide.
Who owns Silverberry RD over Big Gulch Wash #4?
It is owned by the County Highway Agency.