is it legal to u-turn or left-turn across double solid lines (1 pair) in California?

 

I know that I can't make any turn across 2 pairs of double solid lines (they are treated like a virtual wall).

Is it legal to u-turn or left-turn across double solid lines (1 pair) in California?

It's as clear as mud

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nüvi 660 & 670 - Hello I'm a Mac :))