Peninsula Avenue over U.S. Highway 101
GoodSan Mateo County, California · 04-SM-101-14.69-SM · Structure no. 35 0349
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 401 ft
- 4 main spans
- Daily traffic
- 10,000
- 1998 count
- Owner
- State
- State Highway Agency
About this bridge
Peninsula Avenue over U.S. Highway 101 is a prestressed concrete continuous box beam or girders - multiple carrying Peninsula Avenue over U.S. Highway 101 in San Mateo County, California. It was built in 2010, so it is 15 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 10,000 vehicles a day, roughly 5% of them trucks, projected to reach 16,017 by 2040. The structure is 401 ft (122.1 m) long and 80 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Peninsula Avenue over U.S. Highway 101 built?
It was built in 2010, making it 15 years old in 2025.
What condition is Peninsula Avenue over U.S. Highway 101 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 Peninsula Avenue over U.S. Highway 101 carry?
About 10,000 vehicles per day (1998 count), of which roughly 5% are trucks.
How long is Peninsula Avenue over U.S. Highway 101?
The structure is 401 ft (122.1 m) long with a longest span of 119 ft (36.2 m) and a deck 80 ft wide.
Who owns Peninsula Avenue over U.S. Highway 101?
It is owned by the State Highway Agency.