Bridge Ave over San Anselmo Creek
FairMarin County, California · 80M SW of Sir Francis Drk · Structure no. 27C0100
- Built
- 1935
- 90 years old, rebuilt 1960
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 116 ft
- 4 main spans
- Daily traffic
- 9,000
- 2016 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Bridge Ave over San Anselmo Creek is a concrete continuous tee beam carrying Bridge Ave over San Anselmo Creek in Marin County, California. It was built in 1935 and reconstructed in 1960, 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 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 9,000 vehicles a day, roughly 5% of them trucks, projected to reach 10,408 by 2046. The structure is 116 ft (35.4 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Bridge Ave over San Anselmo Creek built?
It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1960.
What condition is Bridge Ave 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 2024.
How much traffic does Bridge Ave over San Anselmo Creek carry?
About 9,000 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Bridge Ave over San Anselmo Creek?
The structure is 116 ft (35.4 m) long with a longest span of 38 ft (11.6 m) and a deck 38 ft wide.
Who owns Bridge Ave over San Anselmo Creek?
It is owned by the City or Municipal Highway Agency.