California Code, Streets and Highways Code - SHC § 30150

The department shall have full charge of the acquisition and construction of all toll bridges and other toll highway crossings, transportation facilities, and additional transportation facilities authorized by thecommission, the operation and maintenance thereof, and the collection of tolls thereon. The director shall proceed with the construction of the toll bridges and other highway crossings, transportation facilities, and additional transportation facilities immediately upon funds for such work being made available, and shall prosecute the work to completion as rapidly as possible.