Boca Dam Road over Boca Dam Spillway
GoodPosted for loadNevada County, California · 0.4 MI N of I80 · Structure no. CARS-003
- Built
- 1938
- 87 years old
- Condition
- Good
- inspected July 2023
- Type
- Slab
- Concrete
- Length
- 42 ft
- 2 main spans
- Daily traffic
- 185
- 2014 count
- Owner
- Federal
- Bureau of Reclamation
About this bridge
Boca Dam Road over Boca Dam Spillway is a concrete slab carrying Boca Dam Road over Boca Dam Spillway in Nevada County, California. It was built in 1938, so it is 87 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. Its operating status is: posted for load restriction.
It carries about 185 vehicles a day, roughly 20% of them trucks, projected to reach 200 by 2031. The structure is 42 ft (12.8 m) long and 19 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Boca Dam Road over Boca Dam Spillway built?
It was built in 1938, making it 87 years old in 2025.
What condition is Boca Dam Road over Boca Dam Spillway 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 2023.
How much traffic does Boca Dam Road over Boca Dam Spillway carry?
About 185 vehicles per day (2014 count), of which roughly 20% are trucks.
How long is Boca Dam Road over Boca Dam Spillway?
The structure is 42 ft (12.8 m) long with a longest span of 21 ft (6.4 m) and a deck 19 ft wide.
Who owns Boca Dam Road over Boca Dam Spillway?
It is owned by the Bureau of Reclamation.