Route 580 is from:
(a) Route 5 southwest of Vernalis to Route 80 in Oakland via the vicinity of Dublin and Hayward.
(b) Route 80 near Albany to Route 101 near San Rafael via the Richmond-San Rafael Bridge.
Cal. Sts. & High. Code § 618
The State Highway Routes
Amended by Stats. 1990, Ch. 1187, Sec. 21.
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.