Alexander Valley R over Russian River - Jimtown
FairSonoma County, California · North of Healdsburg · Structure no. 20C0006
- Built
- 1949
- 76 years old
- Condition
- Fair
- inspected July 2023
- Type
- Truss - Thru
- Steel Continuous
- Length
- 1,384 ft
- 5 main spans
- Daily traffic
- 3,300
- 2012 count
- Owner
- County
- County Highway Agency
About this bridge
Alexander Valley R over Russian River - Jimtown is a steel continuous truss - thru carrying Alexander Valley R over Russian River - Jimtown in Sonoma County, California. It was built in 1949, 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 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 3,300 vehicles a day, roughly 2% of them trucks, projected to reach 3,955 by 2043. The structure is 1,384 ft (421.8 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alexander Valley R over Russian River - Jimtown built?
It was built in 1949, making it 76 years old in 2025.
What condition is Alexander Valley R over Russian River - Jimtown 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 2023.
How much traffic does Alexander Valley R over Russian River - Jimtown carry?
About 3,300 vehicles per day (2012 count), of which roughly 2% are trucks.
How long is Alexander Valley R over Russian River - Jimtown?
The structure is 1,384 ft (421.8 m) long with a longest span of 120 ft (36.6 m) and a deck 28 ft wide.
Who owns Alexander Valley R over Russian River - Jimtown?
It is owned by the County Highway Agency.