Cal. Gov. Code § 14680
Whenever a state building or other state structure is about to be constructed and it is necessary to clear any land, public street or public way of any easement or right-of-way, or the works of any public utility, which would interfere with the state building or structure, the Director of General Services may enter into an agreement with the owner of the easement or right-of-way, or public utility, for the relocating or removal of any facilities of such public utility or owner which lie in, on, along, or across such land, public street or public way and for the conveying or quitclaiming to the state of any interest of such utility or owner in such land, public street or public way. The cost of such removal or relocation may be paid, with the approval of the State Public Works Board, out of any money available for the construction of the state building or other structure the erection of which necessitates such relocation or removal. Nothing in this section authorizes the relocation or removal at state expense of any public utility works or other facilities which, under the same circumstances, the public utility or owner would be required to relocate or remove at its own expense.
Ca. Gov. Code § 14680