Fir Road over Dutch Bill Creek
PoorSonoma County, California · Monte Rio · Structure no. 20C0393
- Built
- 1974
- 51 years old
- Condition
- Poor
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 98 ft
- 5 main spans
- Daily traffic
- 300
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Fir Road over Dutch Bill Creek is a steel stringer/multi-beam or girder carrying Fir Road over Dutch Bill Creek in Sonoma County, California. It was built in 1974, so it is 51 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 300 vehicles a day, roughly 1% of them trucks, projected to reach 448 by 2043. The structure is 98 ft (29.9 m) long and 22 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Fir Road over Dutch Bill Creek built?
It was built in 1974, making it 51 years old in 2025.
What condition is Fir Road over Dutch Bill Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.
How much traffic does Fir Road over Dutch Bill Creek carry?
About 300 vehicles per day (2011 count), of which roughly 1% are trucks.
How long is Fir Road over Dutch Bill Creek?
The structure is 98 ft (29.9 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.
Who owns Fir Road over Dutch Bill Creek?
It is owned by the County Highway Agency.