Watmaugh Road over Fowler Creek
FairSonoma County, California · 0.3 MI E Arnold · Structure no. 20C0257
- Built
- 1920
- 105 years old, rebuilt 1965
- Condition
- Fair
- inspected April 2024
- Type
- Slab
- Concrete Continuous
- Length
- 53 ft
- 3 main spans
- Daily traffic
- 3,300
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Watmaugh Road over Fowler Creek is a concrete continuous slab carrying Watmaugh Road over Fowler Creek in Sonoma County, California. It was built in 1920 and reconstructed in 1965, so it is 105 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 3,300 vehicles a day, roughly 3% of them trucks, projected to reach 2,137 by 2046. The structure is 53 ft (16.2 m) long and 42 ft wide. If it were closed, the detour would be 6.2 mi (10 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 Watmaugh Road over Fowler Creek built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1965.
What condition is Watmaugh Road over Fowler 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 April 2024.
How much traffic does Watmaugh Road over Fowler Creek carry?
About 3,300 vehicles per day (2015 count), of which roughly 3% are trucks.
How long is Watmaugh Road over Fowler Creek?
The structure is 53 ft (16.2 m) long with a longest span of 17 ft (5.3 m) and a deck 42 ft wide.
Who owns Watmaugh Road over Fowler Creek?
It is owned by the County Highway Agency.