River RD over Russian River
PoorSonoma County, California · 5.31 MI Intx With SR 116 · Structure no. 20C0037
- Built
- 1914
- 111 years old, rebuilt 1947
- Condition
- Poor
- inspected October 2023
- Type
- Truss - Thru
- Steel
- Length
- 531 ft
- 1 main span
- Daily traffic
- 10,000
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
River RD over Russian River is a steel truss - thru carrying River RD over Russian River in Sonoma County, California. It was built in 1914 and reconstructed in 1947, so it is 111 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 10,000 vehicles a day, roughly 3% of them trucks, projected to reach 13,000 by 2040. The structure is 531 ft (161.8 m) long and 34 ft wide. If it were closed, the detour would be 13 mi (21 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 River RD over Russian River built?
It was built in 1914, making it 111 years old in 2025. It was reconstructed in 1947.
What condition is River RD over Russian 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 October 2023.
How much traffic does River RD over Russian River carry?
About 10,000 vehicles per day (2015 count), of which roughly 3% are trucks.
How long is River RD over Russian River?
The structure is 531 ft (161.8 m) long with a longest span of 200 ft (61 m) and a deck 34 ft wide.
Who owns River RD over Russian River?
It is owned by the County Highway Agency.