State Route 128 over Russian River
FairSonoma County, California · 04-SON-128-5.44 · Structure no. 20 0288
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected November 2024
- Type
- Tee Beam
- Prestressed Concrete Continuous
- Length
- 980 ft
- 10 main spans
- Daily traffic
- 2,650
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 128 over Russian River is a prestressed concrete continuous tee beam carrying State Route 128 over Russian River in Sonoma County, California. It was built in 2006, so it is 19 years old, younger 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 2,650 vehicles a day, roughly 9% of them trucks, projected to reach 3,275 by 2046. The structure is 980 ft (298.7 m) long and 49 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 128 over Russian River built?
It was built in 2006, making it 19 years old in 2025.
What condition is State Route 128 over Russian River 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 November 2024.
How much traffic does State Route 128 over Russian River carry?
About 2,650 vehicles per day (2016 count), of which roughly 9% are trucks.
How long is State Route 128 over Russian River?
The structure is 980 ft (298.7 m) long with a longest span of 102 ft (31.2 m) and a deck 49 ft wide.
Who owns State Route 128 over Russian River?
It is owned by the State Highway Agency.