Cal. Sts. & High. Code § 31163

Funding or refunding bonds shall not constitute a debt or obligation of the state or of El Dorado County, but shall be bonds of the authority of the same character and payable from the same funds as other bonds authorized pursuant to this chapter. Any and all reserve or other funds applicable to the payment of the bonds funded or refunded, may, if so directed by the authority, be transferred to any reserve or other funds provided with respect to the funding or refunding bonds. The pledge of the tolls and other revenues to be received from the operation of the toll tunnel to the payment of outstanding bonds shall not be lessened, diminished, or affected in any way by the issuance of such funding or refunding bonds.