Livorna RD over San Ramon Creek
GoodContra Costa County, California · At RTE 680 · Structure no. 28C0336
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 100 ft
- 1 main span
- Daily traffic
- 7,924
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Livorna RD over San Ramon Creek is a prestressed concrete stringer/multi-beam or girder carrying Livorna RD over San Ramon Creek in Contra Costa County, California. It was built in 1971, so it is 54 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 7,924 vehicles a day, roughly 2% of them trucks, projected to reach 10,940 by 2046. The structure is 100 ft (30.6 m) long and 76 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 | 8 Very Good | No problems noted. |
| 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 Livorna RD over San Ramon Creek built?
It was built in 1971, making it 54 years old in 2025.
What condition is Livorna RD over San Ramon Creek 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 November 2024.
How much traffic does Livorna RD over San Ramon Creek carry?
About 7,924 vehicles per day (2013 count), of which roughly 2% are trucks.
How long is Livorna RD over San Ramon Creek?
The structure is 100 ft (30.6 m) long with a longest span of 98 ft (29.9 m) and a deck 76 ft wide.
Who owns Livorna RD over San Ramon Creek?
It is owned by the County Highway Agency.