Cal. Wat. Code § 12847
Where recreation and fish and wildlife enhancement features are contained in a flood control or watershed protection project, and where such payment is specifically authorized by the Legislature, the state shall pay 50 percent of the nonfederal capital costs of the recreation and fish and wildlife enhancement features of the project; provided, however, if the project is subject to the provisions of Public Law 89-72, the state may cooperate in the attainment of such benefits in accordance with the provisions of subdivision (c) of Section 5094.3 of the Public Resources Code.
The department or the Reclamation Board, as to projects under their respective jurisdictions, shall obtain assurances from the local agency sponsoring the project guaranteeing public access to project land and water areas prior to state participation in any costs pursuant to this chapter.
Ca. Water Code § 12847