Main ST over Dutch Bill Creek
PoorSonoma County, California · Monte RIO-0.26 M FM SR116 · Structure no. 20C0160
- Built
- 1953
- 72 years old
- Condition
- Poor
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 123 ft
- 4 main spans
- Daily traffic
- 838
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Main ST over Dutch Bill Creek is a concrete continuous slab carrying Main ST over Dutch Bill Creek in Sonoma County, California. It was built in 1953, so it is 72 years old, older 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 838 vehicles a day, roughly 2% of them trucks, projected to reach 1,734 by 2041. The structure is 123 ft (37.5 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 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 | 4 Poor | Advanced section loss, deterioration, 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 Main ST over Dutch Bill Creek built?
It was built in 1953, making it 72 years old in 2025.
What condition is Main ST 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 October 2023.
How much traffic does Main ST over Dutch Bill Creek carry?
About 838 vehicles per day (2015 count), of which roughly 2% are trucks.
How long is Main ST over Dutch Bill Creek?
The structure is 123 ft (37.5 m) long with a longest span of 35 ft (10.7 m) and a deck 36 ft wide.
Who owns Main ST over Dutch Bill Creek?
It is owned by the County Highway Agency.