(5) The proceeds from toll rates and other charges of the commission may only be used to pay the necessary and incidental costs and expenses incurred by the commission in connection with owning, constructing, operating, maintaining, renewing and governing a bridge, including but not limited to costs incurred for:
- (a) The design, development, construction, equipping, installation, financing or refinancing of the bridge, demolition and removal of the existing bridge and mitigation of associated impacts;
- (b) The operation, repair, maintenance, resurfacing, preservation, equipping, improvement, reconstruction, renewal and replacement of the bridge;
- (c) The tolling of the bridge, the collection, administration and enforcement of tolls and the acquisition, leasing, maintenance and replacement of tolling equipment and software;
- (d) The financing or refinancing of any bonds or other debt instruments of the commission;
- (e) A reasonable return on investment for the private financing of the costs, expenses or obligations of the commission;
- (f) The establishment and maintenance of reserves or sinking funds approved by the board; and
- (g) Any other obligations or expenses incurred by the commission in carrying out the commission’s purposes under ORS 381.702 to 381.755.