Nicassio Vly RD over Nicasio Drain No 2
FairMarin County, California · S Pt. Reyes - Petalm · Structure no. 27C0033
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected July 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 24 ft
- 2 main spans
- Daily traffic
- 1,750
- 1975 count
- Owner
- County
- County Highway Agency
About this bridge
Nicassio Vly RD over Nicasio Drain No 2 is a concrete continuous culvert carrying Nicassio Vly RD over Nicasio Drain No 2 in Marin County, California. It was built in 1968, so it is 57 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 1,750 vehicles a day, roughly 3% of them trucks, projected to reach 2,424 by 2044. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 16.8 mi (27 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nicassio Vly RD over Nicasio Drain No 2 built?
It was built in 1968, making it 57 years old in 2025.
What condition is Nicassio Vly RD over Nicasio Drain No 2 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 2024.
How much traffic does Nicassio Vly RD over Nicasio Drain No 2 carry?
About 1,750 vehicles per day (1975 count), of which roughly 3% are trucks.
How long is Nicassio Vly RD over Nicasio Drain No 2?
The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).
Who owns Nicassio Vly RD over Nicasio Drain No 2?
It is owned by the County Highway Agency.