Cal. Sts. & High. Code § 31171

The holder of any bond may by mandamus or other appropriate proceeding compel the performance of any of the duties imposed upon the authority or its officers, agents, and employees in connection with the construction, maintenance, operation, and insurance of the toll tunnel, in connection with the collection, deposit, investment, application, and disbursement of all tolls and other revenues derived from the operation and use of the toll tunnel, and in connection with the deposit, investment, and disbursement of the proceeds received from the sale of bonds. The enumeration of rights and remedies in this chapter does not exclude the exercise or prosecution of any other rights or remedies by the holders of such bonds.