Cal. Public Contract Code § 22162.6

(a) Upon approval of the board of supervisors, the County of Orange may use the design-build contracting process described in this chapter to award a contract for the following projects: (1) Flood protection improvements. (2) Harbor and beach improvements. (3) Bikeway improvements. (b) In addition to the requirements set forth in Section 22164, for a project authorized under subdivision (a), the county shall be responsible for the performance of, and county employees in Orange County Public Works may perform, project development services, including performance specifications, preliminary engineering, procurement services and the preparation of project reports, and construction inspection services, excluding specialty bridge inspectors. The county shall also be the responsible agency for, and county employees in Orange County Public Works may perform, the preparation of documents that may include, but need not be limited to, the size, type, and desired design character of the project, performance specifications covering quality of materials, equipment, and workmanship, preliminary plans, and any other information deemed necessary to describe adequately the needs of the County of Orange. (c) For a project authorized under subdivision (a), the county shall be limited to no more than one project per year in excess of five million dollars ($5,000,000).