Philo Greenwood RD over Navarro River
PoorMendocino County, California · 0.4 MI W of SR 128 · Structure no. 10C0032
- Built
- 1949
- 76 years old, rebuilt 1951
- Condition
- Poor
- inspected February 2024
- Type
- Arch - Deck
- Concrete
- Length
- 352 ft
- 3 main spans
- Daily traffic
- 418
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Philo Greenwood RD over Navarro River is a concrete arch - deck carrying Philo Greenwood RD over Navarro River in Mendocino County, California. It was built in 1949 and reconstructed in 1951, so it is 76 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 418 vehicles a day, roughly 5% of them trucks, projected to reach 438 by 2042. The structure is 352 ft (107.3 m) long and 19 ft wide. If it were closed, the detour would be 44.1 mi (71 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Philo Greenwood RD over Navarro River built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1951.
What condition is Philo Greenwood RD over Navarro River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.
How much traffic does Philo Greenwood RD over Navarro River carry?
About 418 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Philo Greenwood RD over Navarro River?
The structure is 352 ft (107.3 m) long with a longest span of 132 ft (40.3 m) and a deck 19 ft wide.
Who owns Philo Greenwood RD over Navarro River?
It is owned by the County Highway Agency.