US Highway 101 SB over SR 116 & Nwp RR & Ditch
GoodSonoma County, California · 04-SON-101-3.65-PET · Structure no. 20 0284L
- Built
- 2007
- 18 years old, rebuilt 2014
- Condition
- Good
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 565 ft
- 5 main spans
- Daily traffic
- 43,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 SB over SR 116 & Nwp RR & Ditch is a prestressed concrete continuous box beam or girders - multiple carrying US Highway 101 SB over SR 116 & Nwp RR & Ditch in Sonoma County, California. It was built in 2007 and reconstructed in 2014, so it is 18 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 43,000 vehicles a day, roughly 5% of them trucks, projected to reach 63,224 by 2046. The structure is 565 ft (172.1 m) long and 84 ft wide. If it were closed, the detour would be 3.7 mi (6 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 SR 116 & Nwp RR & Ditch built?
It was built in 2007, making it 18 years old in 2025. It was reconstructed in 2014.
What condition is US Highway 101 SB over SR 116 & Nwp RR & Ditch 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 March 2024.
How much traffic does US Highway 101 SB over SR 116 & Nwp RR & Ditch carry?
About 43,000 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is US Highway 101 SB over SR 116 & Nwp RR & Ditch?
The structure is 565 ft (172.1 m) long with a longest span of 128 ft (39.1 m) and a deck 84 ft wide.
Who owns US Highway 101 SB over SR 116 & Nwp RR & Ditch?
It is owned by the State Highway Agency.