Commission to fix and collect bridge tolls

The commission shall fix and collect tolls for transit over each bridge. The tolls shall be adjusted, in respect of the aggregate of tolls from each bridge for which bonds are issued, so as to provide a fund sufficient to pay the principal and interest on the bonds, and to provide an additional fund to pay the cost of maintaining, repairing and operating the bridge, subject, however, to any applicable law or regulation of the United States.