Shell Blvd over Foster City Lagoon
FairSan Mateo County, California · .3 MI N/O Beach Park Road · Structure no. 35C0071L
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 504 ft
- 5 main spans
- Daily traffic
- 2,103
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Shell Blvd over Foster City Lagoon is a concrete continuous box beam or girders - multiple carrying Shell Blvd over Foster City Lagoon in San Mateo County, California. It was built in 1966, so it is 59 years old, older 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 2,103 vehicles a day, roughly 11% of them trucks, projected to reach 7,749 by 2041. The structure is 504 ft (153.6 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Shell Blvd over Foster City Lagoon built?
It was built in 1966, making it 59 years old in 2025.
What condition is Shell 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 Shell Blvd over Foster City Lagoon carry?
About 2,103 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is Shell Blvd over Foster City Lagoon?
The structure is 504 ft (153.6 m) long with a longest span of 100 ft (30.5 m) and a deck 32 ft wide.
Who owns Shell Blvd over Foster City Lagoon?
It is owned by the City or Municipal Highway Agency.