U.S. Highway 101 over 3rd Street
FairSan Francisco County, California · 04-SF-101-0.77-SF · Structure no. 34 0030
- Built
- 1954
- 71 years old, rebuilt 1970
- Condition
- Fair
- inspected January 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 270 ft
- 3 main spans
- Daily traffic
- 189,000
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over 3rd Street is a concrete continuous box beam or girders - multiple carrying U.S. Highway 101 over 3rd Street in San Francisco County, California. It was built in 1954 and reconstructed in 1970, so it is 71 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 189,000 vehicles a day, roughly 5% of them trucks, projected to reach 241,497 by 2046. The structure is 270 ft (82.3 m) long and 156 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over 3rd Street built?
It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1970.
What condition is U.S. Highway 101 over 3rd Street 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 January 2024.
How much traffic does U.S. Highway 101 over 3rd Street carry?
About 189,000 vehicles per day (2018 count), of which roughly 5% are trucks.
How long is U.S. Highway 101 over 3rd Street?
The structure is 270 ft (82.3 m) long with a longest span of 132 ft (40.3 m) and a deck 156 ft wide.
Who owns U.S. Highway 101 over 3rd Street?
It is owned by the State Highway Agency.