U.S. Highway 101 over Alana Way
FairSan Francisco County, California · 04-SF-101-0.01-SF · Structure no. 34 0060
- Built
- 1954
- 71 years old, rebuilt 1972
- Condition
- Fair
- inspected December 2023
- Type
- Slab
- Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 199,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Alana Way is a concrete slab carrying U.S. Highway 101 over Alana Way in San Francisco County, California. It was built in 1954 and reconstructed in 1972, 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 199,000 vehicles a day, roughly 5% of them trucks, projected to reach 258,116 by 2041. The structure is 23 ft (7 m) long and 198 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over Alana Way built?
It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1972.
What condition is U.S. Highway 101 over Alana Way 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 December 2023.
How much traffic does U.S. Highway 101 over Alana Way carry?
About 199,000 vehicles per day (2019 count), of which roughly 5% are trucks.
How long is U.S. Highway 101 over Alana Way?
The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 198 ft wide.
Who owns U.S. Highway 101 over Alana Way?
It is owned by the State Highway Agency.