US Highway 101 over Dry Creek Road
PoorSonoma County, California · 04-SON-101-36.27 · Structure no. 20 0144
- Built
- 1960
- 65 years old
- Condition
- Poor
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 177 ft
- 3 main spans
- Daily traffic
- 45,500
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 over Dry Creek Road is a concrete continuous box beam or girders - multiple carrying US Highway 101 over Dry Creek Road in Sonoma County, California. It was built in 1960, so it is 65 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 45,500 vehicles a day, roughly 13% of them trucks, projected to reach 88,340 by 2045. The structure is 177 ft (53.9 m) long and 91 ft wide.
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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US Highway 101 over Dry Creek Road built?
It was built in 1960, making it 65 years old in 2025.
What condition is US Highway 101 over Dry Creek Road 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 April 2023.
How much traffic does US Highway 101 over Dry Creek Road carry?
About 45,500 vehicles per day (2015 count), of which roughly 13% are trucks.
How long is US Highway 101 over Dry Creek Road?
The structure is 177 ft (53.9 m) long with a longest span of 87 ft (26.5 m) and a deck 91 ft wide.
Who owns US Highway 101 over Dry Creek Road?
It is owned by the State Highway Agency.