Portola RD over Corte Madera Creek
GoodSan Mateo County, California · 0.1 MI E Willowbrook DR · Structure no. 35C0166
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected May 2024
- Type
- Slab
- Concrete
- Length
- 39 ft
- 1 main span
- Daily traffic
- 4,000
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Portola RD over Corte Madera Creek is a concrete slab carrying Portola RD over Corte Madera Creek in San Mateo County, California. It was built in 1989, so it is 36 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 4,000 vehicles a day, roughly 2% of them trucks, projected to reach 6,541 by 2046. The structure is 39 ft (11.9 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Portola RD over Corte Madera Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Portola RD over Corte Madera Creek 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 2024.
How much traffic does Portola RD over Corte Madera Creek carry?
About 4,000 vehicles per day (2018 count), of which roughly 2% are trucks.
How long is Portola RD over Corte Madera Creek?
The structure is 39 ft (11.9 m) long with a longest span of 34 ft (10.4 m) and a deck 48 ft wide.
Who owns Portola RD over Corte Madera Creek?
It is owned by the City or Municipal Highway Agency.