Cal. Pub. Util. Code § 30633
The district may construct, acquire, develop, jointly develop, maintain, operate, lease, and dispose of works and facilities in, under, upon, over, across, or along any road, street, alley, avenue, or public highway or any stream, bay, watercourse, or other public ways or waterways, or over any of the lands which are the property of the state, including, but not limited to, facilities and structures physically or functionally related to rapid transit service, to the same extent that those rights and privileges relating to public ways or waterways are granted to municipalities within the state for those uses or any other use or uses, including, but not limited to, those uses specified in Article 3 (commencing with Section 10101) of Chapter 1 of Division 5.
Ca. Pub. Util. Code § 30633