S101-SFO Airpt Off over US 101 2 AIRPRT-S101 on
GoodSan Mateo County, California · 04-SM-101-19.12 · Structure no. 35 0323K
- Built
- 2000
- 25 years old
- Condition
- Good
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 1,567 ft
- 13 main spans
- Daily traffic
- 8,000
- 2000 count
- Owner
- State
- State Highway Agency
About this bridge
S101-SFO Airpt Off over US 101 2 AIRPRT-S101 on is a prestressed concrete continuous box beam or girders - multiple carrying S101-SFO Airpt Off over US 101 2 AIRPRT-S101 on in San Mateo County, California. It was built in 2000, so it is 25 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 8,000 vehicles a day, roughly 3% of them trucks, projected to reach 17,101 by 2040. The structure is 1,567 ft (477.5 m) long and 41 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 S101-SFO Airpt Off over US 101 2 AIRPRT-S101 on built?
It was built in 2000, making it 25 years old in 2025.
What condition is S101-SFO Airpt Off over US 101 2 AIRPRT-S101 on 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 S101-SFO Airpt Off over US 101 2 AIRPRT-S101 on carry?
About 8,000 vehicles per day (2000 count), of which roughly 3% are trucks.
How long is S101-SFO Airpt Off over US 101 2 AIRPRT-S101 on?
The structure is 1,567 ft (477.5 m) long with a longest span of 147 ft (44.7 m) and a deck 41 ft wide.
Who owns S101-SFO Airpt Off over US 101 2 AIRPRT-S101 on?
It is owned by the State Highway Agency.