S101-WASHINGTON over Washington Street Creek
FairSonoma County, California · 04-SON-101-4.80-PET · Structure no. 20 0164K
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected March 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 120 ft
- 3 main spans
- Daily traffic
- 3,400
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
S101-WASHINGTON over Washington Street Creek is a concrete continuous tee beam carrying S101-WASHINGTON over Washington Street Creek in Sonoma County, California. It was built in 1955, so it is 70 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 3,400 vehicles a day, roughly 2% of them trucks, projected to reach 10,866 by 2046. The structure is 120 ft (36.6 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S101-WASHINGTON over Washington Street Creek built?
It was built in 1955, making it 70 years old in 2025.
What condition is S101-WASHINGTON over Washington Street 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 March 2024.
How much traffic does S101-WASHINGTON over Washington Street Creek carry?
About 3,400 vehicles per day (2010 count), of which roughly 2% are trucks.
How long is S101-WASHINGTON over Washington Street Creek?
The structure is 120 ft (36.6 m) long with a longest span of 48 ft (14.6 m) and a deck 28 ft wide.
Who owns S101-WASHINGTON over Washington Street Creek?
It is owned by the State Highway Agency.