Cal. Wat. Code § 8623
Notwithstanding any of the provisions of Chapter 1 (commencing with Section 12570) and Chapter 3 (commencing with Section 12800) of Part 6 of Division 6, the board may plan, design, and construct flood relief structures or weirs and other structures or facilities essential for their proper functioning in the vicinity of the Sacramento River between Big Chico Creek and the north boundary of Glenn County Levee District No. 3, as needed to assure proper division of flood flows between the river and adjacent overflow areas and to preserve the integrity of the Sacramento River Flood Control Project. No revetment of the river bank may be installed pursuant to this section except to the extent necessary to assure the proper division of flood flows as described in this section. If any revetment is required under this section, it shall be accomplished by the palisades method, unless the department finds that method is not feasible.
Ca. Water Code § 8623