California Code, Public Utilities Code - PUC § 1206

The commission may fix the just compensation to be paid for property or any interest in or to property to be taken or damaged in the separation of grades at any crossing specified in Section 1202, or for property or any interest in or to property to be taken or damaged in the construction, alteration, or relocation, under the order or with the approval of the commission, of elevated tracks or subways for any railroad or street railroad over or under any public road, street, highway, or private right-of-way, or of any public road, street, or highway over or under the tracks of any railroad corporation or street railroad corporation, and upon the payment of the compensation so fixed may make a final order of condemnation.