California Code, Fish and Game Code - FGC § 1009

The department may obtain for the State rights of way over private lands for the purpose of furnishing access for the public to lands or waters open to public hunting or fishing whenever such rights of way are determined by the commission to be necessary for such public use. Such rights of way shall not be acquired by eminent domain proceedings.

The department may construct or cause to be constructed such fences, signs, and other structures as are necessary for the protection of any such right of way, and the cost of the construction shall be met out of the funds available to the department.