Shady Lane over Ross Creek
GoodMarin County, California · Near Locust ST · Structure no. 27C0078
- Built
- 1909
- 116 years old
- Condition
- Good
- inspected July 2023
- Type
- Slab
- Concrete Continuous
- Length
- 43 ft
- 3 main spans
- Daily traffic
- 1,800
- 2005 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Shady Lane over Ross Creek is a concrete continuous slab carrying Shady Lane over Ross Creek in Marin County, California. It was built in 1909, so it is 116 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 1,800 vehicles a day, roughly 2% of them trucks, projected to reach 2,180 by 2041. The structure is 43 ft (13.1 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Shady Lane over Ross Creek built?
It was built in 1909, making it 116 years old in 2025.
What condition is Shady Lane over Ross Creek 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 July 2023.
How much traffic does Shady Lane over Ross Creek carry?
About 1,800 vehicles per day (2005 count), of which roughly 2% are trucks.
How long is Shady Lane over Ross Creek?
The structure is 43 ft (13.1 m) long with a longest span of 22 ft (6.6 m) and a deck 28 ft wide.
Who owns Shady Lane over Ross Creek?
It is owned by the City or Municipal Highway Agency.