U.S. Highway 101 over Sausalito Road
GoodMarin County, California · 04-MRN-101-0.32-SAUS · Structure no. 27 0038
- Built
- 1935
- 90 years old, rebuilt 1969
- Condition
- Good
- inspected May 2024
- Type
- Slab
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 106,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Sausalito Road is a concrete slab carrying U.S. Highway 101 over Sausalito Road in Marin County, California. It was built in 1935 and reconstructed in 1969, so it is 90 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 106,000 vehicles a day, roughly 1% of them trucks, projected to reach 147,619 by 2046. The structure is 27 ft (8.2 m) long and 123 ft wide. If it were closed, the detour would be 29.8 mi (48 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 U.S. Highway 101 over Sausalito Road built?
It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1969.
What condition is U.S. Highway 101 over Sausalito Road 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 May 2024.
How much traffic does U.S. Highway 101 over Sausalito Road carry?
About 106,000 vehicles per day (2009 count), of which roughly 1% are trucks.
How long is U.S. Highway 101 over Sausalito Road?
The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 123 ft wide.
Who owns U.S. Highway 101 over Sausalito Road?
It is owned by the State Highway Agency.