Interstate 780 WB over Southampton Road
GoodSolano County, California · 04-SOL-780-3.81-BEN · Structure no. 23 0132R
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected December 2023
- Type
- Slab
- Concrete Continuous
- Length
- 119 ft
- 3 main spans
- Daily traffic
- 23,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 780 WB over Southampton Road is a concrete continuous slab carrying Interstate 780 WB over Southampton Road in Solano County, California. It was built in 1962, so it is 63 years old, older 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 23,500 vehicles a day, roughly 5% of them trucks, projected to reach 40,470 by 2042. The structure is 119 ft (36.3 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 780 WB over Southampton Road built?
It was built in 1962, making it 63 years old in 2025.
What condition is Interstate 780 WB over Southampton Road 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 December 2023.
How much traffic does Interstate 780 WB over Southampton Road carry?
About 23,500 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is Interstate 780 WB over Southampton Road?
The structure is 119 ft (36.3 m) long with a longest span of 47 ft (14.3 m) and a deck 42 ft wide.
Who owns Interstate 780 WB over Southampton Road?
It is owned by the State Highway Agency.