Cal. Sts. & Hy. Code § 5102
In any proceeding for the making of any work or improvement authorized under Section 5101 of this code, the legislative body may order any acquisition as defined in Section 5023.1 necessary or appropriate in connection with such work or improvement and assess the cost of such acquisition, as a part of the incidental expenses of such work or improvement. Any such acquisition shall be described in the resolution of intention in general terms and refer to plans, profiles, detailed drawings and specifications or such of them as may be suitable and proper for the full detailed description of the acquisition proposed. The city initiating such proceedings is authorized to advance the cost of any such acquisition from its general funds, and thereafter reimburse such general funds as a part of the incidental expenses of such improvement.
Ca. Sts. and High. Code § 5102