North Lake Drive over Lake Alhambra
PoorContra Costa County, California · At East 13th ST · Structure no. 28C0424
- Built
- 1961
- 64 years old, rebuilt 1987
- Condition
- Poor
- inspected January 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 33 ft
- 3 main spans
- Daily traffic
- 1,500
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
North Lake Drive over Lake Alhambra is a concrete continuous culvert carrying North Lake Drive over Lake Alhambra in Contra Costa County, California. It was built in 1961 and reconstructed in 1987, so it is 64 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 1,500 vehicles a day, roughly 1% of them trucks, projected to reach 2,003 by 2047. The structure is 33 ft (10.1 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was North Lake Drive over Lake Alhambra built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1987.
What condition is North Lake Drive over Lake Alhambra 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 January 2025.
How much traffic does North Lake Drive over Lake Alhambra carry?
About 1,500 vehicles per day (2020 count), of which roughly 1% are trucks.
How long is North Lake Drive over Lake Alhambra?
The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3.2 m) and a deck 38 ft wide.
Who owns North Lake Drive over Lake Alhambra?
It is owned by the City or Municipal Highway Agency.