SB101-E580 Connect over US Highway 101
GoodMarin County, California · 04-MRN-101-9.94-SRF · Structure no. 27 0060F
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 1,427 ft
- 10 main spans
- Daily traffic
- 22,200
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
SB101-E580 Connect over US Highway 101 is a prestressed concrete continuous box beam or girders - multiple carrying SB101-E580 Connect over US Highway 101 in Marin County, California. It was built in 2009, so it is 16 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 22,200 vehicles a day, roughly 5% of them trucks, projected to reach 46,061 by 2042. The structure is 1,427 ft (435 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 SB101-E580 Connect over US Highway 101 built?
It was built in 2009, making it 16 years old in 2025.
What condition is SB101-E580 Connect over US Highway 101 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 SB101-E580 Connect over US Highway 101 carry?
About 22,200 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is SB101-E580 Connect over US Highway 101?
The structure is 1,427 ft (435 m) long with a longest span of 161 ft (49 m) and a deck 41 ft wide.
Who owns SB101-E580 Connect over US Highway 101?
It is owned by the State Highway Agency.