State Route 128 over Rockaway Creek
FairSonoma County, California · 04-SON-128-6.44 · Structure no. 20 0039
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected November 2024
- Type
- Slab
- Concrete Continuous
- Length
- 117 ft
- 4 main spans
- Daily traffic
- 2,650
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 128 over Rockaway Creek is a concrete continuous slab carrying State Route 128 over Rockaway Creek in Sonoma County, California. It was built in 1976, so it is 49 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 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 2,650 vehicles a day, roughly 9% of them trucks, projected to reach 3,275 by 2046. The structure is 117 ft (35.7 m) long and 44 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 128 over Rockaway Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is State Route 128 over Rockaway Creek 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 Rockaway Creek carry?
About 2,650 vehicles per day (2016 count), of which roughly 9% are trucks.
How long is State Route 128 over Rockaway Creek?
The structure is 117 ft (35.7 m) long with a longest span of 32 ft (9.8 m) and a deck 44 ft wide.
Who owns State Route 128 over Rockaway Creek?
It is owned by the State Highway Agency.