Cal. Sts. & Hy. Code § 30407
The right of way is given, dedicated, and set apart upon which to locate, construct, and maintain bridges or other highway crossings, transportation facilities, and additional transportation facilities which have been or may be constructed pursuant to this chapter, through, over, under, on or across any property of the State, including highways, now or hereafter owned, opened, or dedicated to or for public use and howsoever acquired, and through, over, under, on, or across the streets, alleys, lanes, and roads now or hereafter opened or dedicated to or for public use and howsoever acquired which are now or may be within any county, city, public or municipal corporation, district, or political subdivision of the State.
Ca. Sts. and High. Code § 30407