Canyon Road over San Anselmo Creek
FairMarin County, California · 0.1 MI S/O Cascade DR · Structure no. 27C0146
- Built
- 1998
- 27 years old
- Condition
- Fair
- inspected September 2022
- Type
- Slab
- Prestressed Concrete
- Length
- 33 ft
- 1 main span
- Daily traffic
- 100
- 1992 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Canyon Road over San Anselmo Creek is a prestressed concrete slab carrying Canyon Road over San Anselmo Creek in Marin County, California. It was built in 1998, so it is 27 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 6 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 100 vehicles a day, roughly 1% of them trucks, projected to reach 369 by 2044. The structure is 33 ft (10 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Canyon Road over San Anselmo Creek built?
It was built in 1998, making it 27 years old in 2025.
What condition is Canyon Road over San Anselmo Creek 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 September 2022.
How much traffic does Canyon Road over San Anselmo Creek carry?
About 100 vehicles per day (1992 count), of which roughly 1% are trucks.
How long is Canyon Road over San Anselmo Creek?
The structure is 33 ft (10 m) long with a longest span of 33 ft (10 m) and a deck 16 ft wide.
Who owns Canyon Road over San Anselmo Creek?
It is owned by the City or Municipal Highway Agency.