Red Cap Road over Big Rock Gulch
GoodHumboldt County, California · 0.3 Miles SW of SR96 · Structure no. 04C0259
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected October 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 60 ft
- 1 main span
- Daily traffic
- 425
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Red Cap Road over Big Rock Gulch is a prestressed concrete slab carrying Red Cap Road over Big Rock Gulch in Humboldt County, California. It was built in 2019, so it is 6 years old, younger than the California average of 54.8 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 425 vehicles a day, roughly 2% of them trucks, projected to reach 512 by 2041. The structure is 60 ft (18.3 m) long and 36 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| 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 Red Cap Road over Big Rock Gulch built?
It was built in 2019, making it 6 years old in 2025.
What condition is Red Cap Road over Big Rock Gulch 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 October 2023.
How much traffic does Red Cap Road over Big Rock Gulch carry?
About 425 vehicles per day (2011 count), of which roughly 2% are trucks.
How long is Red Cap Road over Big Rock Gulch?
The structure is 60 ft (18.3 m) long with a longest span of 53 ft (16.1 m) and a deck 36 ft wide.
Who owns Red Cap Road over Big Rock Gulch?
It is owned by the County Highway Agency.