As an alternative to financing projects under this chapter solely by owners of real estate, the City may join in the financing of an improvement project and may be reimbursed in the same manner as the owners of real estate who participate in the project, upon the passage of an ordinance specifying the conditions of the City’s participation in such project. The City shall be reimbursed only for the costs of improvements that benefit that portion of the public who will use the developments within the established assessment reimbursement area. No city costs for improvements that benefit the general public shall be reimbursed. (Ord. 1474 § 1 (part), 1989).