Interstate 680 SB over UPRR Marina Vista Mococo
FairContra Costa County, California · 04-CC-680-24.26 · Structure no. 28 0171L
- Built
- 1962
- 63 years old, rebuilt 1991
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 1,207 ft
- 10 main spans
- Daily traffic
- 51,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 680 SB over UPRR Marina Vista Mococo is a steel stringer/multi-beam or girder carrying Interstate 680 SB over UPRR Marina Vista Mococo in Contra Costa County, California. It was built in 1962 and reconstructed in 1991, 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 51,000 vehicles a day, roughly 8% of them trucks, projected to reach 87,991 by 2047. The structure is 1,207 ft (367.8 m) long and 96 ft wide. If it were closed, the detour would be 34.8 mi (56 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Interstate 680 SB over UPRR Marina Vista Mococo built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1991.
What condition is Interstate 680 SB over UPRR Marina Vista Mococo in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.
How much traffic does Interstate 680 SB over UPRR Marina Vista Mococo carry?
About 51,000 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Interstate 680 SB over UPRR Marina Vista Mococo?
The structure is 1,207 ft (367.8 m) long with a longest span of 160 ft (48.8 m) and a deck 96 ft wide.
Who owns Interstate 680 SB over UPRR Marina Vista Mococo?
It is owned by the State Highway Agency.