Petaluma Hill RD over Copeland Creek
FairSonoma County, California · 5.2 MI Inter Stony Pnt RD · Structure no. 20C0127
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected November 2024
- Type
- Slab
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 16,000
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Petaluma Hill RD over Copeland Creek is a concrete slab carrying Petaluma Hill RD over Copeland Creek in Sonoma County, California. It was built in 1969, so it is 56 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 16,000 vehicles a day, roughly 1% of them trucks, projected to reach 38,943 by 2042. The structure is 26 ft (8 m) long and 58 ft wide. If it were closed, the detour would be 2.5 mi (4 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Petaluma Hill RD over Copeland Creek built?
It was built in 1969, making it 56 years old in 2025.
What condition is Petaluma Hill RD over Copeland 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 Petaluma Hill RD over Copeland Creek carry?
About 16,000 vehicles per day (2015 count), of which roughly 1% are trucks.
How long is Petaluma Hill RD over Copeland Creek?
The structure is 26 ft (8 m) long with a longest span of 25 ft (7.7 m) and a deck 58 ft wide.
Who owns Petaluma Hill RD over Copeland Creek?
It is owned by the County Highway Agency.