Notwithstanding any other provision of this article, any public entity authorized to acquire property for a particular use by eminent domain may acquire property to be used in the future for that use by any means (including eminent domain) expressly consented to by its owner.
Section 1240.240
Code Civ. Proc. § 1240.240 — under California Code Civ. Proc..
Code Civ. Proc. § 1240.240