Decoto Road over Alameda Creek Tributary
FairAlameda County, California · Just S/O Niles Blvd · Structure no. 33C0120
- Built
- 1920
- 105 years old, rebuilt 1974
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Concrete
- Length
- 41 ft
- 2 main spans
- Daily traffic
- 35,700
- 2009 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Decoto Road over Alameda Creek Tributary is a concrete slab carrying Decoto Road over Alameda Creek Tributary in Alameda County, California. It was built in 1920 and reconstructed in 1974, so it is 105 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 35,700 vehicles a day, roughly 5% of them trucks, projected to reach 20,290 by 2046. The structure is 41 ft (12.5 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Decoto Road over Alameda Creek Tributary built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1974.
What condition is Decoto Road over Alameda Creek Tributary 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 September 2024.
How much traffic does Decoto Road over Alameda Creek Tributary carry?
About 35,700 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is Decoto Road over Alameda Creek Tributary?
The structure is 41 ft (12.5 m) long with a longest span of 18 ft (5.4 m) and a deck 95 ft wide.
Who owns Decoto Road over Alameda Creek Tributary?
It is owned by the City or Municipal Highway Agency.