SB State RTE 280 over Larkspur Drive
GoodSan Mateo County, California · 04-SM-280-R18.52-MLBR · Structure no. 35 0216L
- Built
- 1969
- 56 years old
- Condition
- Good
- inspected July 2021
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 99 ft
- 1 main span
- Daily traffic
- 51,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
SB State RTE 280 over Larkspur Drive is a prestressed concrete box beam or girders - multiple carrying SB State RTE 280 over Larkspur Drive in San Mateo County, California. It was built in 1969, so it is 56 years old, older 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 51,500 vehicles a day, projected to reach 70,297 by 2038. The structure is 99 ft (30.2 m) long and 70 ft wide.
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 SB State RTE 280 over Larkspur Drive built?
It was built in 1969, making it 56 years old in 2025.
What condition is SB State RTE 280 over Larkspur Drive 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 July 2021.
How much traffic does SB State RTE 280 over Larkspur Drive carry?
About 51,500 vehicles per day (2009 count).
How long is SB State RTE 280 over Larkspur Drive?
The structure is 99 ft (30.2 m) long with a longest span of 96 ft (29.4 m) and a deck 70 ft wide.
Who owns SB State RTE 280 over Larkspur Drive?
It is owned by the State Highway Agency.