U.S. Highway 101 over Oyster Point Drain
GoodSan Mateo County, California · 04-SM-101-22.90-SSF · Structure no. 35 0307
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 42 ft
- 2 main spans
- Daily traffic
- 196,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Oyster Point Drain is a concrete continuous culvert carrying U.S. Highway 101 over Oyster Point Drain in San Mateo County, California. It was built in 1995, so it is 30 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 196,000 vehicles a day, roughly 4% of them trucks, projected to reach 243,117 by 2040. The structure is 42 ft (12.7 m) long. 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over Oyster Point Drain built?
It was built in 1995, making it 30 years old in 2025.
What condition is U.S. Highway 101 over Oyster Point Drain 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 April 2023.
How much traffic does U.S. Highway 101 over Oyster Point Drain carry?
About 196,000 vehicles per day (2009 count), of which roughly 4% are trucks.
How long is U.S. Highway 101 over Oyster Point Drain?
The structure is 42 ft (12.7 m) long with a longest span of 19 ft (5.8 m).
Who owns U.S. Highway 101 over Oyster Point Drain?
It is owned by the State Highway Agency.