Old Dublin Road over San Lorenzo Creek
PoorAlameda County, California · 0.5 MI E/O Castro Vly RD · Structure no. 33C0023
- Built
- 1927
- 98 years old
- Condition
- Poor
- inspected June 2024
- Type
- Arch - Deck
- Concrete
- Length
- 41 ft
- 1 main span
- Daily traffic
- 2,120
- 1980 count
- Owner
- County
- County Highway Agency
About this bridge
Old Dublin Road over San Lorenzo Creek is a concrete arch - deck carrying Old Dublin Road over San Lorenzo Creek in Alameda County, California. It was built in 1927, so it is 98 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 2,120 vehicles a day, roughly 2% of them trucks, projected to reach 2,690 by 2042. The structure is 41 ft (12.5 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old Dublin Road over San Lorenzo Creek built?
It was built in 1927, making it 98 years old in 2025.
What condition is Old Dublin Road over San Lorenzo Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.
How much traffic does Old Dublin Road over San Lorenzo Creek carry?
About 2,120 vehicles per day (1980 count), of which roughly 2% are trucks.
How long is Old Dublin Road over San Lorenzo Creek?
The structure is 41 ft (12.5 m) long with a longest span of 34 ft (10.4 m) and a deck 34 ft wide.
Who owns Old Dublin Road over San Lorenzo Creek?
It is owned by the County Highway Agency.