US Highway 101 SB over Tennessee Hollow
FairSan Francisco County, California · 04-SF-101-R8.35-SF · Structure no. 34 0164L
- Built
- 2015
- 10 years old
- Condition
- Fair
- inspected March 2023
- Type
- Slab
- Prestressed Concrete Continuous
- Length
- 390 ft
- 7 main spans
- Daily traffic
- 18,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 SB over Tennessee Hollow is a prestressed concrete continuous slab carrying US Highway 101 SB over Tennessee Hollow in San Francisco County, California. It was built in 2015, so it is 10 years old, younger 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 18,000 vehicles a day, roughly 4% of them trucks, projected to reach 30,178 by 2045. The structure is 390 ft (118.9 m) long and 51 ft wide. If it were closed, the detour would be 5.6 mi (9 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US Highway 101 SB over Tennessee Hollow built?
It was built in 2015, making it 10 years old in 2025.
What condition is US Highway 101 SB over Tennessee Hollow 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 March 2023.
How much traffic does US Highway 101 SB over Tennessee Hollow carry?
About 18,000 vehicles per day (2019 count), of which roughly 4% are trucks.
How long is US Highway 101 SB over Tennessee Hollow?
The structure is 390 ft (118.9 m) long with a longest span of 60 ft (18.3 m) and a deck 51 ft wide.
Who owns US Highway 101 SB over Tennessee Hollow?
It is owned by the State Highway Agency.