Pt Reyes Petlma RD over San Antonio Creek
FairMarin County, California · At Marin Sonoma CO Line · Structure no. 27C0151
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected July 2022
- Type
- Slab
- Concrete Continuous
- Length
- 102 ft
- 3 main spans
- Daily traffic
- 1,450
- 1976 count
- Owner
- County
- County Highway Agency
About this bridge
Pt Reyes Petlma RD over San Antonio Creek is a concrete continuous slab carrying Pt Reyes Petlma RD over San Antonio Creek in Marin County, California. It was built in 1964, so it is 61 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 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 1,450 vehicles a day, roughly 10% of them trucks, projected to reach 2,005 by 2040. The structure is 102 ft (31.1 m) long and 41 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Pt Reyes Petlma RD over San Antonio Creek built?
It was built in 1964, making it 61 years old in 2025.
What condition is Pt Reyes Petlma RD over San Antonio 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 July 2022.
How much traffic does Pt Reyes Petlma RD over San Antonio Creek carry?
About 1,450 vehicles per day (1976 count), of which roughly 10% are trucks.
How long is Pt Reyes Petlma RD over San Antonio Creek?
The structure is 102 ft (31.1 m) long with a longest span of 36 ft (11 m) and a deck 41 ft wide.
Who owns Pt Reyes Petlma RD over San Antonio Creek?
It is owned by the County Highway Agency.