Tassajara Road over Kobold Creek
GoodAlameda County, California · 1.4 MI North of Dublin Bl · Structure no. 33C0428
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected October 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 55 ft
- 1 main span
- Daily traffic
- 9,000
- 2014 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Tassajara Road over Kobold Creek is a prestressed concrete slab carrying Tassajara Road over Kobold Creek in Alameda County, California. It was built in 2007, so it is 18 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 9,000 vehicles a day, roughly 3% of them trucks, projected to reach 4,204 by 2045. The structure is 55 ft (16.8 m) long and 118 ft wide. If it were closed, the detour would be 0.6 mi (1 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. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Tassajara Road over Kobold Creek built?
It was built in 2007, making it 18 years old in 2025.
What condition is Tassajara Road over Kobold 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 October 2023.
How much traffic does Tassajara Road over Kobold Creek carry?
About 9,000 vehicles per day (2014 count), of which roughly 3% are trucks.
How long is Tassajara Road over Kobold Creek?
The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 118 ft wide.
Who owns Tassajara Road over Kobold Creek?
It is owned by the City or Municipal Highway Agency.