Banner Lava Cap RD over State Route 20
GoodNevada County, California · 03-NEV-020-R15.41 · Structure no. 17 0077
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 308 ft
- 4 main spans
- Daily traffic
- 7,500
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Banner Lava Cap RD over State Route 20 is a concrete continuous box beam or girders - multiple carrying Banner Lava Cap RD over State Route 20 in Nevada County, California. It was built in 1967, so it is 58 years old, older 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 7,500 vehicles a day, roughly 9% of them trucks, projected to reach 10,408 by 2042. The structure is 308 ft (93.9 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Banner Lava Cap RD over State Route 20 built?
It was built in 1967, making it 58 years old in 2025.
What condition is Banner Lava Cap RD over State Route 20 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 2024.
How much traffic does Banner Lava Cap RD over State Route 20 carry?
About 7,500 vehicles per day (2020 count), of which roughly 9% are trucks.
How long is Banner Lava Cap RD over State Route 20?
The structure is 308 ft (93.9 m) long with a longest span of 94 ft (28.7 m) and a deck 37 ft wide.
Who owns Banner Lava Cap RD over State Route 20?
It is owned by the State Highway Agency.