US Highway 101 SB over First ST & Cloverdale CR
GoodSonoma County, California · 04-SON-101-R52.06-CLVD · Structure no. 20 0252L
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 221 ft
- 2 main spans
- Daily traffic
- 9,000
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 SB over First ST & Cloverdale CR is a prestressed concrete continuous box beam or girders - multiple carrying US Highway 101 SB over First ST & Cloverdale CR in Sonoma County, California. It was built in 1994, so it is 31 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 9,000 vehicles a day, roughly 12% of them trucks, projected to reach 13,350 by 2041. The structure is 221 ft (67.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US Highway 101 SB over First ST & Cloverdale CR built?
It was built in 1994, making it 31 years old in 2025.
What condition is US Highway 101 SB over First ST & Cloverdale CR in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.
How much traffic does US Highway 101 SB over First ST & Cloverdale CR carry?
About 9,000 vehicles per day (2013 count), of which roughly 12% are trucks.
How long is US Highway 101 SB over First ST & Cloverdale CR?
The structure is 221 ft (67.4 m) long with a longest span of 130 ft (39.6 m) and a deck 42 ft wide.
Who owns US Highway 101 SB over First ST & Cloverdale CR?
It is owned by the State Highway Agency.