Millbrae Ave over N Br Laguna De Santa Rsa
GoodSonoma County, California · W of Langner · Structure no. 20C0277
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Concrete Continuous
- Length
- 123 ft
- 5 main spans
- Daily traffic
- 3,000
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Millbrae Ave over N Br Laguna De Santa Rsa is a concrete continuous slab carrying Millbrae Ave over N Br Laguna De Santa Rsa in Sonoma County, California. It was built in 1963, so it is 62 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 3,000 vehicles a day, roughly 1% of them trucks, projected to reach 6,290 by 2040. The structure is 123 ft (37.5 m) long and 32 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Millbrae Ave over N Br Laguna De Santa Rsa built?
It was built in 1963, making it 62 years old in 2025.
What condition is Millbrae Ave over N Br Laguna De Santa Rsa 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 May 2023.
How much traffic does Millbrae Ave over N Br Laguna De Santa Rsa carry?
About 3,000 vehicles per day (2015 count), of which roughly 1% are trucks.
How long is Millbrae Ave over N Br Laguna De Santa Rsa?
The structure is 123 ft (37.5 m) long with a longest span of 27 ft (8.2 m) and a deck 32 ft wide.
Who owns Millbrae Ave over N Br Laguna De Santa Rsa?
It is owned by the County Highway Agency.