315.10 Refunding bonds.—The governing body is hereby authorized to provide by resolution for the issuance of refunding bonds of the unit for the purpose of refunding any bonds then outstanding which shall have been issued under the provisions of this law or which shall have been issued to provide funds for the payment of the cost of any port facilities under the provisions of any other law, including the payment of any redemption premium thereon and any interest accrued or to accrue to the date of redemption of such bonds, and, if deemed advisable by the governing body, for the additional purpose of acquiring or constructing additional port facilities. The issuance of such bonds, the maturities and other details thereof, the rights of the holders thereof, and the rights, duties and obligations of the unit in respect of the same, shall be governed by the provisions of this law insofar as the same may be applicable.