Beach Park Blvd over Foster City Lagoon
FairSan Mateo County, California · 0.1 MI E Edgewater Blvd · Structure no. 35C0062
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 750 ft
- 7 main spans
- Daily traffic
- 9,750
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Beach Park Blvd over Foster City Lagoon is a concrete continuous box beam or girders - multiple carrying Beach Park Blvd over Foster City Lagoon in San Mateo County, California. It was built in 1975, so it is 50 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 9,750 vehicles a day, roughly 8% of them trucks, projected to reach 8,550 by 2041. The structure is 750 ft (228.6 m) long and 79 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Beach Park Blvd over Foster City Lagoon built?
It was built in 1975, making it 50 years old in 2025.
What condition is Beach Park Blvd over Foster City Lagoon in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.
How much traffic does Beach Park Blvd over Foster City Lagoon carry?
About 9,750 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is Beach Park Blvd over Foster City Lagoon?
The structure is 750 ft (228.6 m) long with a longest span of 100 ft (30.5 m) and a deck 79 ft wide.
Who owns Beach Park Blvd over Foster City Lagoon?
It is owned by the City or Municipal Highway Agency.