D Street over Petaluma River
FairSonoma County, California · Near Downtown Petaluma · Structure no. 20C0048
- Built
- 1933
- 92 years old, rebuilt 1953
- Condition
- Fair
- inspected June 2023
- Type
- Movable - Bascule
- Steel
- Length
- 205 ft
- 1 main span
- Daily traffic
- 16,330
- 2013 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
D Street over Petaluma River is a steel movable - bascule carrying D Street over Petaluma River in Sonoma County, California. It was built in 1933 and reconstructed in 1953, so it is 92 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 16,330 vehicles a day, roughly 10% of them trucks, projected to reach 20,649 by 2045. The structure is 205 ft (62.5 m) long and 55 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was D Street over Petaluma River built?
It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1953.
What condition is D Street over Petaluma 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 June 2023.
How much traffic does D Street over Petaluma River carry?
About 16,330 vehicles per day (2013 count), of which roughly 10% are trucks.
How long is D Street over Petaluma River?
The structure is 205 ft (62.5 m) long with a longest span of 80 ft (24.4 m) and a deck 55 ft wide.
Who owns D Street over Petaluma River?
It is owned by the City or Municipal Highway Agency.